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131242200021030 = 23572324756344647
BaseRepresentation
bin11101110101110100110100…
…101101100011100000100110
3122012200122001120111120202010
4131311310310231203200212
5114200233011201133110
61143043500115255050
736433636030523010
oct3565646455434046
9565618046446663
10131242200021030
11388aa56048675a
121287774b2aa486
135830117960527
14245a2291391b0
151028d9de8e020
hex775d34b63826

131242200021030 has 384 divisors, whose sum is σ = 385008187834368. Its totient is φ = 28032927664896.

The previous prime is 131242200021013. The next prime is 131242200021061. The reversal of 131242200021030 is 30120002242131.

131242200021030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 131242200020988 and 131242200021006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2939530167 + ... + 2939574813.

It is an arithmetic number, because the mean of its divisors is an integer number (1002625489152).

Almost surely, 2131242200021030 is an apocalyptic number.

131242200021030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131242200021030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192504093917184).

131242200021030 is an abundant number, since it is smaller than the sum of its proper divisors (253765987813338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131242200021030 is a wasteful number, since it uses less digits than its factorization.

131242200021030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45320 (or 45297 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 131242200021030 its reverse (30120002242131), we get a palindrome (161362202263161).

The spelling of 131242200021030 in words is "one hundred thirty-one trillion, two hundred forty-two billion, two hundred million, twenty-one thousand, thirty".