31202120120201 has 16 divisors (see below), whose sum is σ = 31462672147200. Its totient is φ = 30942287326080.

The previous prime is 31202120120173. The next prime is 31202120120207. The reversal of 31202120120201 is 10202102120213.

It is a cyclic number.

It is not a de Polignac number, because 31202120120201 - 2⁴² = 26804073609097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31202120120201.

It is not an unprimeable number, because it can be changed into a prime (31202120120207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252777440 + ... + 252900846.

It is an arithmetic number, because the mean of its divisors is an integer number (1966417009200).

Almost surely, 2^{31202120120201} is an apocalyptic number.

It is an amenable number.

31202120120201 is a deficient number, since it is larger than the sum of its proper divisors (260552026999).

31202120120201 is a wasteful number, since it uses less digits than its factorization.

31202120120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126304.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 31202120120201 its reverse (10202102120213), we get a palindrome (41404222240414).

The spelling of 31202120120201 in words is "thirty-one trillion, two hundred two billion, one hundred twenty million, one hundred twenty thousand, two hundred one".