31110421311 has 24 divisors (see below), whose sum is σ = 47765843424. Its totient is φ = 19444285440.

The previous prime is 31110421291. The next prime is 31110421333. The reversal of 31110421311 is 11312401113.

It is a happy number.

31110421311 is a `hidden beast` number, since 311 + 1 + 0 + 42 + 1 + 311 = 666.

It is not a de Polignac number, because 31110421311 - 2⁷ = 31110421183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31110426311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356275 + ... + 434916.

It is an arithmetic number, because the mean of its divisors is an integer number (1990243476).

Almost surely, 2^31110421311 is an apocalyptic number.

31110421311 is a deficient number, since it is larger than the sum of its proper divisors (16655422113).

31110421311 is a wasteful number, since it uses less digits than its factorization.

31110421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791471 (or 791468 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 31110421311 its reverse (11312401113), we get a palindrome (42422822424).

The spelling of 31110421311 in words is "thirty-one billion, one hundred ten million, four hundred twenty-one thousand, three hundred eleven".