231203332128 has 48 divisors (see below), whose sum is σ = 606937574880. Its totient is φ = 77064116736.

The previous prime is 231203332127. The next prime is 231203332177. The reversal of 231203332128 is 821233302132.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 231203332095 and 231203332104.

It is not an unprimeable number, because it can be changed into a prime (231203332127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2627143 + ... + 2713721.

It is an arithmetic number, because the mean of its divisors is an integer number (12644532810).

Almost surely, 2^231203332128 is an apocalyptic number.

It is an amenable number.

231203332128 is an abundant number, since it is smaller than the sum of its proper divisors (375734242752).

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

231203332128 is a wasteful number, since it uses less digits than its factorization.

231203332128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114409 (or 114401 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 231203332128 in words is "two hundred thirty-one billion, two hundred three million, three hundred thirty-two thousand, one hundred twenty-eight".