20531014063 has 12 divisors (see below), whose sum is σ = 23886691320. Its totient is φ = 17595304272.

The previous prime is 20531014037. The next prime is 20531014069. The reversal of 20531014063 is 36041013502.

It is not a de Polignac number, because 20531014063 - 2²¹ = 20528916911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20531014069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330748 + ... + 387886.

It is an arithmetic number, because the mean of its divisors is an integer number (1990557610).

Almost surely, 2^20531014063 is an apocalyptic number.

20531014063 is a deficient number, since it is larger than the sum of its proper divisors (3355677257).

20531014063 is an equidigital number, since it uses as much as digits as its factorization.

20531014063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64486 (or 64479 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 20531014063 its reverse (36041013502), we get a palindrome (56572027565).

The spelling of 20531014063 in words is "twenty billion, five hundred thirty-one million, fourteen thousand, sixty-three".