23031033122021 has 2 divisors, whose sum is σ = 23031033122022. Its totient is φ = 23031033122020.

The previous prime is 23031033121973. The next prime is 23031033122023. The reversal of 23031033122021 is 12022133013032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22924120471396 + 106912650625 = 4787914^2 + 326975^2 .

It is a cyclic number.

It is not a de Polignac number, because 23031033122021 - 2²² = 23031028927717 is a prime.

Together with 23031033122023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23031033122023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11515516561010 + 11515516561011.

It is an arithmetic number, because the mean of its divisors is an integer number (11515516561011).

Almost surely, 2^{23031033122021} is an apocalyptic number.

It is an amenable number.

23031033122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23031033122021 is an equidigital number, since it uses as much as digits as its factorization.

23031033122021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 23031033122021 its reverse (12022133013032), we get a palindrome (35053166135053).

The spelling of 23031033122021 in words is "twenty-three trillion, thirty-one billion, thirty-three million, one hundred twenty-two thousand, twenty-one".