31311012103306 has 8 divisors (see below), whose sum is σ = 50579327243844. Its totient is φ = 14451236355360.

The previous prime is 31311012103289. The next prime is 31311012103333. The reversal of 31311012103306 is 60330121011313.

It can be written as a sum of positive squares in 2 ways, for example, as 26959553523081 + 4351458580225 = 5192259^2 + 2086015^2 .

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

It is a super-2 number, since 2×31311012103306² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 602134848115 + ... + 602134848166.

Almost surely, 2^{31311012103306} is an apocalyptic number.

31311012103306 is a deficient number, since it is larger than the sum of its proper divisors (19268315140538).

31311012103306 is a wasteful number, since it uses less digits than its factorization.

31311012103306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204269696296.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 31311012103306 its reverse (60330121011313), we get a palindrome (91641133114619).

The spelling of 31311012103306 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred three thousand, three hundred six".