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131022233030000 = 2454137334494003
BaseRepresentation
bin11101110010100111111101…
…101010000100110101110000
3122011220121021200210122210102
4131302213331222010311300
5114133132013123430000
61142354441035251532
736412021035122114
oct3562477552046560
9564817250718712
10131022233030000
1138825242891684
1212840ba08a9ba8
135815460a53180
14244d71d2c5744
1510232c7b1e3d5
hex7729fda84d70

131022233030000 has 400 divisors, whose sum is σ = 346485964624800. Its totient is φ = 47688984576000.

The previous prime is 131022233029981. The next prime is 131022233030009. The reversal of 131022233030000 is 30332220131.

It is a tau number, because it is divible by the number of its divisors (400).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131022233030009) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 32731007999 + ... + 32731012001.

It is an arithmetic number, because the mean of its divisors is an integer number (866214911562).

Almost surely, 2131022233030000 is an apocalyptic number.

131022233030000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131022233030000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173242982312400).

131022233030000 is an abundant number, since it is smaller than the sum of its proper divisors (215463731594800).

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

131022233030000 is a wasteful number, since it uses less digits than its factorization.

131022233030000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7566 (or 7545 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 131022233030000 its reverse (30332220131), we get a palindrome (131052565250131).

The spelling of 131022233030000 in words is "one hundred thirty-one trillion, twenty-two billion, two hundred thirty-three million, thirty thousand".