31110212312 has 32 divisors (see below), whose sum is σ = 58450740480. Its totient is φ = 15523388160.

The previous prime is 31110212297. The next prime is 31110212327. The reversal of 31110212312 is 21321201113.

It is an interprime number because it is at equal distance from previous prime (31110212297) and next prime (31110212327).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14736137 + ... + 14738247.

It is an arithmetic number, because the mean of its divisors is an integer number (1826585640).

Almost surely, 2^31110212312 is an apocalyptic number.

It is an amenable number.

31110212312 is a deficient number, since it is larger than the sum of its proper divisors (27340528168).

31110212312 is a wasteful number, since it uses less digits than its factorization.

31110212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003 (or 4999 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 31110212312 its reverse (21321201113), we get a palindrome (52431413425).

The spelling of 31110212312 in words is "thirty-one billion, one hundred ten million, two hundred twelve thousand, three hundred twelve".