23013142021 has 2 divisors, whose sum is σ = 23013142022. Its totient is φ = 23013142020.

The previous prime is 23013141973. The next prime is 23013142037. The reversal of 23013142021 is 12024131032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16767401121 + 6245740900 = 129489^2 + 79030^2 .

It is a cyclic number.

It is not a de Polignac number, because 23013142021 - 2⁹ = 23013141509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23013142021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23013142091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506571010 + 11506571011.

It is an arithmetic number, because the mean of its divisors is an integer number (11506571011).

Almost surely, 2^23013142021 is an apocalyptic number.

It is an amenable number.

23013142021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23013142021 is an equidigital number, since it uses as much as digits as its factorization.

23013142021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 23013142021 its reverse (12024131032), we get a palindrome (35037273053).

The spelling of 23013142021 in words is "twenty-three billion, thirteen million, one hundred forty-two thousand, twenty-one".