53431023343 has 4 divisors (see below), whose sum is σ = 53477445888. Its totient is φ = 53384600800.

The previous prime is 53431023329. The next prime is 53431023383. The reversal of 53431023343 is 34332013435.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53431023343 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 (53431023383) 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, 23209546 + ... + 23211847.

It is an arithmetic number, because the mean of its divisors is an integer number (13369361472).

Almost surely, 2^53431023343 is an apocalyptic number.

53431023343 is a deficient number, since it is larger than the sum of its proper divisors (46422545).

53431023343 is a wasteful number, since it uses less digits than its factorization.

53431023343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46422544.

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 53431023343 its reverse (34332013435), we get a palindrome (87763036778).

The spelling of 53431023343 in words is "fifty-three billion, four hundred thirty-one million, twenty-three thousand, three hundred forty-three".