20302041431 has 4 divisors (see below), whose sum is σ = 23202333072. Its totient is φ = 17401749792.

The previous prime is 20302041421. The next prime is 20302041433. The reversal of 20302041431 is 13414020302.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-20302041431 is a prime.

It is a super-2 number, since 2×20302041431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302041433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1450145810 + ... + 1450145823.

It is an arithmetic number, because the mean of its divisors is an integer number (5800583268).

Almost surely, 2^20302041431 is an apocalyptic number.

20302041431 is a deficient number, since it is larger than the sum of its proper divisors (2900291641).

20302041431 is an equidigital number, since it uses as much as digits as its factorization.

20302041431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2900291640.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20302041431 its reverse (13414020302), we get a palindrome (33716061733).

The spelling of 20302041431 in words is "twenty billion, three hundred two million, forty-one thousand, four hundred thirty-one".