31012321202001 has 64 divisors (see below), whose sum is σ = 48963184047360. Its totient is φ = 19332182338560.

The previous prime is 31012321201997. The next prime is 31012321202029. The reversal of 31012321202001 is 10020212321013.

31012321202001 is a `hidden beast` number, since 310 + 1 + 2 + 32 + 120 + 200 + 1 = 666.

It is not a de Polignac number, because 31012321202001 - 2² = 31012321201997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31012321204001) 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 63 ways as a sum of consecutive naturals, for example, 635643330 + ... + 635692116.

It is an arithmetic number, because the mean of its divisors is an integer number (765049750740).

Almost surely, 2^{31012321202001} is an apocalyptic number.

It is an amenable number.

31012321202001 is a deficient number, since it is larger than the sum of its proper divisors (17950862845359).

31012321202001 is a wasteful number, since it uses less digits than its factorization.

31012321202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57791 (or 57785 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31012321202001 its reverse (10020212321013), we get a palindrome (41032533523014).

The spelling of 31012321202001 in words is "thirty-one trillion, twelve billion, three hundred twenty-one million, two hundred two thousand, one".