201231312020331 has 8 divisors (see below), whose sum is σ = 271983873781200. Its totient is φ = 132316479136512.

The previous prime is 201231312020287. The next prime is 201231312020341. The reversal of 201231312020331 is 133020213132102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201231312020331 - 2¹⁴ = 201231312003947 is a prime.

It is a super-2 number, since 2×201231312020331² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (201231312020341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459432219006 + ... + 459432219443.

It is an arithmetic number, because the mean of its divisors is an integer number (33997984222650).

Almost surely, 2^{201231312020331} is an apocalyptic number.

201231312020331 is a deficient number, since it is larger than the sum of its proper divisors (70752561760869).

201231312020331 is an equidigital number, since it uses as much as digits as its factorization.

201231312020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918864438525.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 201231312020331 its reverse (133020213132102), we get a palindrome (334251525152433).

The spelling of 201231312020331 in words is "two hundred one trillion, two hundred thirty-one billion, three hundred twelve million, twenty thousand, three hundred thirty-one".