201231136453563 has 48 divisors (see below), whose sum is σ = 318382322049792. Its totient is φ = 121924629504000.

The previous prime is 201231136453541. The next prime is 201231136453577. The reversal of 201231136453563 is 365354631132102.

201231136453563 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 3 + 1 + 1 + 36 + 4 + 53 + 563 = 666.

It is not a de Polignac number, because 201231136453563 - 2⁸ = 201231136453307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201231136453513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 43829718 + ... + 48202763.

It is an arithmetic number, because the mean of its divisors is an integer number (6632965042704).

Almost surely, 2^{201231136453563} is an apocalyptic number.

201231136453563 is a deficient number, since it is larger than the sum of its proper divisors (117151185596229).

201231136453563 is a wasteful number, since it uses less digits than its factorization.

201231136453563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92032996 (or 92032993 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 45.

Adding to 201231136453563 its reverse (365354631132102), we get a palindrome (566585767585665).

The spelling of 201231136453563 in words is "two hundred one trillion, two hundred thirty-one billion, one hundred thirty-six million, four hundred fifty-three thousand, five hundred sixty-three".