23431340422 has 16 divisors (see below), whose sum is σ = 40245122592. Its totient is φ = 10022725440.

The previous prime is 23431340381. The next prime is 23431340441. The reversal of 23431340422 is 22404313432.

It is a super-2 number, since 2×23431340422² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1598913 + ... + 1613500.

It is an arithmetic number, because the mean of its divisors is an integer number (2515320162).

Almost surely, 2^23431340422 is an apocalyptic number.

23431340422 is a deficient number, since it is larger than the sum of its proper divisors (16813782170).

23431340422 is a wasteful number, since it uses less digits than its factorization.

23431340422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212943.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 23431340422 its reverse (22404313432), we get a palindrome (45835653854).

The spelling of 23431340422 in words is "twenty-three billion, four hundred thirty-one million, three hundred forty thousand, four hundred twenty-two".