31103012102132 has 6 divisors (see below), whose sum is σ = 54430271178738. Its totient is φ = 15551506051064.

The previous prime is 31103012102131. The next prime is 31103012102137. The reversal of 31103012102132 is 23120121030113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30715936502416 + 387075599716 = 5542196^2 + 622154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103012102131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3887876512763 + ... + 3887876512770.

It is an arithmetic number, because the mean of its divisors is an integer number (9071711863123).

Almost surely, 2^{31103012102132} is an apocalyptic number.

It is an amenable number.

31103012102132 is a deficient number, since it is larger than the sum of its proper divisors (23327259076606).

31103012102132 is a wasteful number, since it uses less digits than its factorization.

31103012102132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7775753025537 (or 7775753025535 counting only the distinct ones).

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

Adding to 31103012102132 its reverse (23120121030113), we get a palindrome (54223133132245).

The spelling of 31103012102132 in words is "thirty-one trillion, one hundred three billion, twelve million, one hundred two thousand, one hundred thirty-two".