31401112203243 has 12 divisors (see below), whose sum is σ = 45824761681608. Its totient is φ = 20718259597440.

The previous prime is 31401112203217. The next prime is 31401112203337. The reversal of 31401112203243 is 34230221110413.

31401112203243 is a `hidden beast` number, since 3 + 1 + 4 + 0 + 111 + 220 + 324 + 3 = 666.

It is not a de Polignac number, because 31401112203243 - 2²⁵ = 31401078648811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31401112204243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17984599473 + ... + 17984601218.

It is an arithmetic number, because the mean of its divisors is an integer number (3818730140134).

Almost surely, 2^{31401112203243} is an apocalyptic number.

31401112203243 is a deficient number, since it is larger than the sum of its proper divisors (14423649478365).

31401112203243 is a wasteful number, since it uses less digits than its factorization.

31401112203243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35969200794 (or 35969200791 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 31401112203243 its reverse (34230221110413), we get a palindrome (65631333313656).

The spelling of 31401112203243 in words is "thirty-one trillion, four hundred one billion, one hundred twelve million, two hundred three thousand, two hundred forty-three".