23013014219981 has 2 divisors, whose sum is σ = 23013014219982. Its totient is φ = 23013014219980.

The previous prime is 23013014219933. The next prime is 23013014219999. The reversal of 23013014219981 is 18991241031032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15746571558025 + 7266442661956 = 3968195^2 + 2695634^2 .

It is a cyclic number.

It is not a de Polignac number, because 23013014219981 - 2²⁶ = 23012947111117 is a prime.

It is a super-2 number, since 2×23013014219981² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23013014215981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506507109990 + 11506507109991.

It is an arithmetic number, because the mean of its divisors is an integer number (11506507109991).

Almost surely, 2^{23013014219981} is an apocalyptic number.

It is an amenable number.

23013014219981 is a deficient number, since it is larger than the sum of its proper divisors (1).

23013014219981 is an equidigital number, since it uses as much as digits as its factorization.

23013014219981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 44.

The spelling of 23013014219981 in words is "twenty-three trillion, thirteen billion, fourteen million, two hundred nineteen thousand, nine hundred eighty-one".