23136153281 has 16 divisors (see below), whose sum is σ = 25360290000. Its totient is φ = 21009020928.

The previous prime is 23136153253. The next prime is 23136153289. The reversal of 23136153281 is 18235163132.

It can be written as a sum of positive squares in 8 ways, for example, as 1022976256 + 22113177025 = 31984^2 + 148705^2 .

It is a cyclic number.

It is not a de Polignac number, because 23136153281 - 2¹⁴ = 23136136897 is a prime.

It is a super-2 number, since 2×23136153281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23136153289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 690095 + ... + 722843.

It is an arithmetic number, because the mean of its divisors is an integer number (1585018125).

Almost surely, 2^23136153281 is an apocalyptic number.

It is an amenable number.

23136153281 is a deficient number, since it is larger than the sum of its proper divisors (2224136719).

23136153281 is a wasteful number, since it uses less digits than its factorization.

23136153281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34228.

The product of its digits is 25920, while the sum is 35.

The spelling of 23136153281 in words is "twenty-three billion, one hundred thirty-six million, one hundred fifty-three thousand, two hundred eighty-one".