31311312240201 has 64 divisors (see below), whose sum is σ = 48834035712000. Its totient is φ = 17837883177408.

The previous prime is 31311312240151. The next prime is 31311312240239. The reversal of 31311312240201 is 10204221311313.

It is not a de Polignac number, because 31311312240201 - 2¹³ = 31311312232009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31311312240301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1215535560 + ... + 1215561318.

It is an arithmetic number, because the mean of its divisors is an integer number (763031808000).

Almost surely, 2^{31311312240201} is an apocalyptic number.

It is an amenable number.

31311312240201 is a deficient number, since it is larger than the sum of its proper divisors (17522723471799).

31311312240201 is a wasteful number, since it uses less digits than its factorization.

31311312240201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29323 (or 29309 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31311312240201 its reverse (10204221311313), we get a palindrome (41515533551514).

The spelling of 31311312240201 in words is "thirty-one trillion, three hundred eleven billion, three hundred twelve million, two hundred forty thousand, two hundred one".