131111021032 has 32 divisors (see below), whose sum is σ = 249242574600. Its totient is φ = 64646636544.

The previous prime is 131111021023. The next prime is 131111021047. The reversal of 131111021032 is 230120111131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 131097581476 + 13439556 = 362074^2 + 3666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131111020997 and 131111021015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4316394 + ... + 4346662.

Almost surely, 2^131111021032 is an apocalyptic number.

It is an amenable number.

131111021032 is a deficient number, since it is larger than the sum of its proper divisors (118131553568).

131111021032 is a wasteful number, since it uses less digits than its factorization.

131111021032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37765 (or 37761 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131111021032 its reverse (230120111131), we get a palindrome (361231132163).

Subtracting 131111021032 from its reverse (230120111131), we obtain a palindrome (99009090099).

The spelling of 131111021032 in words is "one hundred thirty-one billion, one hundred eleven million, twenty-one thousand, thirty-two".