31213301122 has 16 divisors (see below), whose sum is σ = 47527758432. Its totient is φ = 15370803360.

The previous prime is 31213301087. The next prime is 31213301123. The reversal of 31213301122 is 22110331213.

It is a self number, because there is not a number n which added to its sum of digits gives 31213301122.

It is not an unprimeable number, because it can be changed into a prime (31213301123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802558 + ... + 840550.

It is an arithmetic number, because the mean of its divisors is an integer number (2970484902).

Almost surely, 2^31213301122 is an apocalyptic number.

31213301122 is a deficient number, since it is larger than the sum of its proper divisors (16314457310).

31213301122 is a wasteful number, since it uses less digits than its factorization.

31213301122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44193.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31213301122 its reverse (22110331213), we get a palindrome (53323632335).

The spelling of 31213301122 in words is "thirty-one billion, two hundred thirteen million, three hundred one thousand, one hundred twenty-two".