31323321102 has 16 divisors (see below), whose sum is σ = 64339795152. Its totient is φ = 10158914880.

The previous prime is 31323321101. The next prime is 31323321179. The reversal of 31323321102 is 20112332313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31323321101) 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, 70547799 + ... + 70548242.

It is an arithmetic number, because the mean of its divisors is an integer number (4021237197).

Almost surely, 2^31323321102 is an apocalyptic number.

31323321102 is an abundant number, since it is smaller than the sum of its proper divisors (33016474050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31323321102 is a wasteful number, since it uses less digits than its factorization.

31323321102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141096083.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31323321102 its reverse (20112332313), we get a palindrome (51435653415).

The spelling of 31323321102 in words is "thirty-one billion, three hundred twenty-three million, three hundred twenty-one thousand, one hundred two".