31211031122102 has 16 divisors (see below), whose sum is σ = 50417963629152. Its totient is φ = 14405050108800.

The previous prime is 31211031122099. The next prime is 31211031122113. The reversal of 31211031122102 is 20122113011213.

It is a congruent number.

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, 8761727 + ... + 11797877.

It is an arithmetic number, because the mean of its divisors is an integer number (3151122726822).

Almost surely, 2^{31211031122102} is an apocalyptic number.

31211031122102 is a deficient number, since it is larger than the sum of its proper divisors (19206932507050).

31211031122102 is a wasteful number, since it uses less digits than its factorization.

31211031122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3431543.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 31211031122102 its reverse (20122113011213), we get a palindrome (51333144133315).

The spelling of 31211031122102 in words is "thirty-one trillion, two hundred eleven billion, thirty-one million, one hundred twenty-two thousand, one hundred two".