20431353483 has 12 divisors (see below), whose sum is σ = 29616983448. Its totient is φ = 13572427680.

The previous prime is 20431353463. The next prime is 20431353497. The reversal of 20431353483 is 38435313402.

20431353483 is a `hidden beast` number, since 2 + 0 + 43 + 1 + 3 + 534 + 83 = 666.

It is not a de Polignac number, because 20431353483 - 2⁵ = 20431353451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20431353443) 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, 4036885 + ... + 4041942.

It is an arithmetic number, because the mean of its divisors is an integer number (2468081954).

Almost surely, 2^20431353483 is an apocalyptic number.

20431353483 is a deficient number, since it is larger than the sum of its proper divisors (9185629965).

20431353483 is a wasteful number, since it uses less digits than its factorization.

20431353483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8079114 (or 8079111 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 20431353483 its reverse (38435313402), we get a palindrome (58866666885).

The spelling of 20431353483 in words is "twenty billion, four hundred thirty-one million, three hundred fifty-three thousand, four hundred eighty-three".