31031122102 has 8 divisors (see below), whose sum is σ = 46548028512. Its totient is φ = 15515112600.

The previous prime is 31031122099. The next prime is 31031122139. The reversal of 31031122102 is 20122113013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129774 + ... + 280897.

It is an arithmetic number, because the mean of its divisors is an integer number (5818503564).

Almost surely, 2^31031122102 is an apocalyptic number.

31031122102 is a deficient number, since it is larger than the sum of its proper divisors (15516906410).

31031122102 is a wasteful number, since it uses less digits than its factorization.

31031122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448454.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31031122102 its reverse (20122113013), we get a palindrome (51153235115).

The spelling of 31031122102 in words is "thirty-one billion, thirty-one million, one hundred twenty-two thousand, one hundred two".