31312202102111 has 8 divisors (see below), whose sum is σ = 36102058556064. Its totient is φ = 26601516829440.

The previous prime is 31312202102063. The next prime is 31312202102147. The reversal of 31312202102111 is 11120120221313.

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

It is a de Polignac number, because none of the positive numbers 2^k-31312202102111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312202102191) 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, 19792794470 + ... + 19792796051.

It is an arithmetic number, because the mean of its divisors is an integer number (4512757319508).

Almost surely, 2^{31312202102111} is an apocalyptic number.

31312202102111 is a deficient number, since it is larger than the sum of its proper divisors (4789856453953).

31312202102111 is a wasteful number, since it uses less digits than its factorization.

31312202102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39585590641.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 31312202102111 its reverse (11120120221313), we get a palindrome (42432322323424).

The spelling of 31312202102111 in words is "thirty-one trillion, three hundred twelve billion, two hundred two million, one hundred two thousand, one hundred eleven".