23001221053236 has 24 divisors (see below), whose sum is σ = 53678210199264. Its totient is φ = 7665831626080.

The previous prime is 23001221053171. The next prime is 23001221053241. The reversal of 23001221053236 is 63235012210032.

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, 155180130 + ... + 155328281.

It is an arithmetic number, because the mean of its divisors is an integer number (2236592091636).

Almost surely, 2^{23001221053236} is an apocalyptic number.

It is an amenable number.

23001221053236 is an abundant number, since it is smaller than the sum of its proper divisors (30676989146028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23001221053236 is a wasteful number, since it uses less digits than its factorization.

23001221053236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310514591 (or 310514589 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 23001221053236 its reverse (63235012210032), we get a palindrome (86236233263268).

The spelling of 23001221053236 in words is "twenty-three trillion, one billion, two hundred twenty-one million, fifty-three thousand, two hundred thirty-six".