31102011122 has 32 divisors (see below), whose sum is σ = 60796697472. Its totient is φ = 11580321024.

The previous prime is 31102011121. The next prime is 31102011137. The reversal of 31102011122 is 22111020113.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 31102011097 and 31102011106.

It is not an unprimeable number, because it can be changed into a prime (31102011121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5023088 + ... + 5029275.

It is an arithmetic number, because the mean of its divisors is an integer number (1899896796).

Almost surely, 2^31102011122 is an apocalyptic number.

31102011122 is a deficient number, since it is larger than the sum of its proper divisors (29694686350).

31102011122 is a wasteful number, since it uses less digits than its factorization.

31102011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052402.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 31102011122 its reverse (22111020113), we get a palindrome (53213031235).

The spelling of 31102011122 in words is "thirty-one billion, one hundred two million, eleven thousand, one hundred twenty-two".