23137153573 has 2 divisors, whose sum is σ = 23137153574. Its totient is φ = 23137153572.

The previous prime is 23137153517. The next prime is 23137153591. The reversal of 23137153573 is 37535173132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13619590209 + 9517563364 = 116703^2 + 97558^2 .

It is a cyclic number.

It is not a de Polignac number, because 23137153573 - 2¹⁷ = 23137022501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23137156573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11568576786 + 11568576787.

It is an arithmetic number, because the mean of its divisors is an integer number (11568576787).

Almost surely, 2^23137153573 is an apocalyptic number.

It is an amenable number.

23137153573 is a deficient number, since it is larger than the sum of its proper divisors (1).

23137153573 is an equidigital number, since it uses as much as digits as its factorization.

23137153573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 198450, while the sum is 40.

The spelling of 23137153573 in words is "twenty-three billion, one hundred thirty-seven million, one hundred fifty-three thousand, five hundred seventy-three".