31311021101102 has 16 divisors (see below), whose sum is σ = 47044652437440. Its totient is φ = 15629482140768.

The previous prime is 31311021101089. The next prime is 31311021101123. The reversal of 31311021101102 is 20110112011313.

It is a super-2 number, since 2×31311021101102² (a number of 28 digits) contains 22 as substring.

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, 2326688 + ... + 8248364.

It is an arithmetic number, because the mean of its divisors is an integer number (2940290777340).

Almost surely, 2^{31311021101102} is an apocalyptic number.

31311021101102 is a deficient number, since it is larger than the sum of its proper divisors (15733631336338).

31311021101102 is a wasteful number, since it uses less digits than its factorization.

31311021101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5926075.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 31311021101102 its reverse (20110112011313), we get a palindrome (51421133112415).

The spelling of 31311021101102 in words is "thirty-one trillion, three hundred eleven billion, twenty-one million, one hundred one thousand, one hundred two".