102021120023 has 2 divisors, whose sum is σ = 102021120024. Its totient is φ = 102021120022.

The previous prime is 102021119971. The next prime is 102021120031. The reversal of 102021120023 is 320021120201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102021120023 - 2²⁸ = 101752684567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102021120083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010560011 + 51010560012.

It is an arithmetic number, because the mean of its divisors is an integer number (51010560012).

Almost surely, 2^102021120023 is an apocalyptic number.

102021120023 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021120023 is an equidigital number, since it uses as much as digits as its factorization.

102021120023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102021120023 its reverse (320021120201), we get a palindrome (422042240224).

The spelling of 102021120023 in words is "one hundred two billion, twenty-one million, one hundred twenty thousand, twenty-three".