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231130130132000 = 2553118216398243
BaseRepresentation
bin110100100011011000101101…
…010011011010110000100000
31010022100211021011112212201002
4310203120231103122300200
5220243314001303211000
62135323414351331132
766453413042441021
oct6443305523326040
91108324234485632
10231130130132000
1167710812a00530
1221b0a698b20aa8
139bc7629802068
144110a87cb8c48
151bac359a9a8d5
hexd2362d4dac20

231130130132000 has 192 divisors, whose sum is σ = 620267476203648. Its totient is φ = 83944935040000.

The previous prime is 231130130131997. The next prime is 231130130132053. The reversal of 231130130132000 is 231031031132.

It is a super-2 number, since 2×2311301301320002 (a number of 30 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32924879 + ... + 39323121.

It is an arithmetic number, because the mean of its divisors is an integer number (3230559771894).

Almost surely, 2231130130132000 is an apocalyptic number.

231130130132000 is a gapful number since it is divisible by the number (20) 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 231130130132000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310133738101824).

231130130132000 is an abundant number, since it is smaller than the sum of its proper divisors (389137346071648).

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

231130130132000 is a wasteful number, since it uses less digits than its factorization.

231130130132000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399100 (or 6399082 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 231130130132000 its reverse (231031031132), we get a palindrome (231361161163132).

The spelling of 231130130132000 in words is "two hundred thirty-one trillion, one hundred thirty billion, one hundred thirty million, one hundred thirty-two thousand".