231251152132 has 144 divisors (see below), whose sum is σ = 553448367360. Its totient is φ = 83109196800.

The previous prime is 231251152103. The next prime is 231251152157.

231251152132 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 231251152132.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74861244 + ... + 74864332.

It is an arithmetic number, because the mean of its divisors is an integer number (3843391440).

Almost surely, 2^231251152132 is an apocalyptic number.

231251152132 is a gapful number since it is divisible by the number (22) 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 231251152132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276724183680).

231251152132 is an abundant number, since it is smaller than the sum of its proper divisors (322197215228).

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

231251152132 is a wasteful number, since it uses less digits than its factorization.

231251152132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5802 (or 5793 counting only the distinct ones).

The product of its digits is 3600, while the sum is 28.

It can be divided in two parts, 231251 and 152132, that added together give a palindrome (383383).

The spelling of 231251152132 in words is "two hundred thirty-one billion, two hundred fifty-one million, one hundred fifty-two thousand, one hundred thirty-two".