31311103311 has 14 divisors (see below), whose sum is σ = 46945180680. Its totient is φ = 20874068388.

The previous prime is 31311103283. The next prime is 31311103339. The reversal of 31311103311 is 11330111313.

31311103311 is a `hidden beast` number, since 31 + 311 + 10 + 3 + 311 = 666.

It is an interprime number because it is at equal distance from previous prime (31311103283) and next prime (31311103339).

It is not a de Polignac number, because 31311103311 - 2⁶ = 31311103247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311103381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 21474651 + ... + 21476108.

Almost surely, 2^31311103311 is an apocalyptic number.

31311103311 is a deficient number, since it is larger than the sum of its proper divisors (15634077369).

31311103311 is an frugal number, since it uses more digits than its factorization.

31311103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42950777 (or 42950762 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 31311103311 its reverse (11330111313), we get a palindrome (42641214624).

The spelling of 31311103311 in words is "thirty-one billion, three hundred eleven million, one hundred three thousand, three hundred eleven".