31103311212302 has 64 divisors (see below), whose sum is σ = 56336731977600. Its totient is φ = 12596621506560.

The previous prime is 31103311212289. The next prime is 31103311212397. The reversal of 31103311212302 is 20321211330113.

It is a super-2 number, since 2×31103311212302² (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 31 ways as a sum of consecutive naturals, for example, 7033802 + ... + 10567922.

It is an arithmetic number, because the mean of its divisors is an integer number (880261437150).

Almost surely, 2^{31103311212302} is an apocalyptic number.

31103311212302 is a deficient number, since it is larger than the sum of its proper divisors (25233420765298).

31103311212302 is a wasteful number, since it uses less digits than its factorization.

31103311212302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534621.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31103311212302 its reverse (20321211330113), we get a palindrome (51424522542415).

The spelling of 31103311212302 in words is "thirty-one trillion, one hundred three billion, three hundred eleven million, two hundred twelve thousand, three hundred two".