23136316501 has 2 divisors, whose sum is σ = 23136316502. Its totient is φ = 23136316500.

The previous prime is 23136316429. The next prime is 23136316529. The reversal of 23136316501 is 10561363132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12925416100 + 10210900401 = 113690^2 + 101049^2 .

It is a cyclic number.

It is not a de Polignac number, because 23136316501 - 2⁷ = 23136316373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23136316531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11568158250 + 11568158251.

It is an arithmetic number, because the mean of its divisors is an integer number (11568158251).

Almost surely, 2^23136316501 is an apocalyptic number.

It is an amenable number.

23136316501 is a deficient number, since it is larger than the sum of its proper divisors (1).

23136316501 is an equidigital number, since it uses as much as digits as its factorization.

23136316501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 23136316501 its reverse (10561363132), we get a palindrome (33697679633).

The spelling of 23136316501 in words is "twenty-three billion, one hundred thirty-six million, three hundred sixteen thousand, five hundred one".