23213531532154 has 4 divisors (see below), whose sum is σ = 34820297298234. Its totient is φ = 11606765766076.

The previous prime is 23213531532097. The next prime is 23213531532167. The reversal of 23213531532154 is 45123513531232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19776938554129 + 3436592978025 = 4447127^2 + 1853805^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5803382883037 + ... + 5803382883040.

Almost surely, 2^{23213531532154} is an apocalyptic number.

23213531532154 is a deficient number, since it is larger than the sum of its proper divisors (11606765766080).

23213531532154 is a wasteful number, since it uses less digits than its factorization.

23213531532154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11606765766079.

The product of its digits is 324000, while the sum is 40.

The spelling of 23213531532154 in words is "twenty-three trillion, two hundred thirteen billion, five hundred thirty-one million, five hundred thirty-two thousand, one hundred fifty-four".