231261625104 has 160 divisors (see below), whose sum is σ = 629420440704. Its totient is φ = 73075322880.

The previous prime is 231261625087. The next prime is 231261625151. The reversal of 231261625104 is 401526162132.

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, 32147332 + ... + 32154524.

Almost surely, 2^231261625104 is an apocalyptic number.

231261625104 is a gapful number since it is divisible by the number (24) 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 231261625104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314710220352).

231261625104 is an abundant number, since it is smaller than the sum of its proper divisors (398158815600).

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

231261625104 is a wasteful number, since it uses less digits than its factorization.

231261625104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7705 (or 7699 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 231261625104 its reverse (401526162132), we get a palindrome (632787787236).

The spelling of 231261625104 in words is "two hundred thirty-one billion, two hundred sixty-one million, six hundred twenty-five thousand, one hundred four".