23140213332431 has 4 divisors (see below), whose sum is σ = 24920229742632. Its totient is φ = 21360196922232.

The previous prime is 23140213332373. The next prime is 23140213332433. The reversal of 23140213332431 is 13423331204132.

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-23140213332431 is a prime.

It is a super-2 number, since 2×23140213332431² (a number of 28 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 (23140213332433) 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, 890008205081 + ... + 890008205106.

It is an arithmetic number, because the mean of its divisors is an integer number (6230057435658).

Almost surely, 2^{23140213332431} is an apocalyptic number.

23140213332431 is a deficient number, since it is larger than the sum of its proper divisors (1780016410201).

23140213332431 is a wasteful number, since it uses less digits than its factorization.

23140213332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780016410200.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 23140213332431 its reverse (13423331204132), we get a palindrome (36563544536563).

The spelling of 23140213332431 in words is "twenty-three trillion, one hundred forty billion, two hundred thirteen million, three hundred thirty-two thousand, four hundred thirty-one".