23001221311013 has 16 divisors (see below), whose sum is σ = 25197720109056. Its totient is φ = 20822365877040.

The previous prime is 23001221311007. The next prime is 23001221311051. The reversal of 23001221311013 is 31011312210032.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 23001221311013 - 2¹⁴ = 23001221294629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001221313013) 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, 5652956 + ... + 8829402.

It is an arithmetic number, because the mean of its divisors is an integer number (1574857506816).

Almost surely, 2^{23001221311013} is an apocalyptic number.

It is an amenable number.

23001221311013 is a deficient number, since it is larger than the sum of its proper divisors (2196498798043).

23001221311013 is a wasteful number, since it uses less digits than its factorization.

23001221311013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3179224.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 23001221311013 its reverse (31011312210032), we get a palindrome (54012533521045).

The spelling of 23001221311013 in words is "twenty-three trillion, one billion, two hundred twenty-one million, three hundred eleven thousand, thirteen".