23021445037 has 2 divisors, whose sum is σ = 23021445038. Its totient is φ = 23021445036.

The previous prime is 23021445023. The next prime is 23021445047. The reversal of 23021445037 is 73054412032.

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., 11833305961 + 11188139076 = 108781^2 + 105774^2 .

It is a cyclic number.

It is not a de Polignac number, because 23021445037 - 2⁷ = 23021444909 is a prime.

It is a super-2 number, since 2×23021445037² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23021445047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11510722518 + 11510722519.

It is an arithmetic number, because the mean of its divisors is an integer number (11510722519).

Almost surely, 2^23021445037 is an apocalyptic number.

It is an amenable number.

23021445037 is a deficient number, since it is larger than the sum of its proper divisors (1).

23021445037 is an equidigital number, since it uses as much as digits as its factorization.

23021445037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 23021445037 its reverse (73054412032), we get a palindrome (96075857069).

The spelling of 23021445037 in words is "twenty-three billion, twenty-one million, four hundred forty-five thousand, thirty-seven".