1031111320232 has 48 divisors (see below), whose sum is σ = 2249085489120. Its totient is φ = 441884133600.

The previous prime is 1031111320189. The next prime is 1031111320237. The reversal of 1031111320232 is 2320231111301.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1031111320237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10705007 + ... + 10800897.

It is an arithmetic number, because the mean of its divisors is an integer number (46855947690).

Almost surely, 2^{1031111320232} is an apocalyptic number.

It is an amenable number.

1031111320232 is an abundant number, since it is smaller than the sum of its proper divisors (1217974168888).

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

1031111320232 is a wasteful number, since it uses less digits than its factorization.

1031111320232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123342 (or 123331 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1031111320232 its reverse (2320231111301), we get a palindrome (3351342431533).

The spelling of 1031111320232 in words is "one trillion, thirty-one billion, one hundred eleven million, three hundred twenty thousand, two hundred thirty-two".