23514212021 has 2 divisors, whose sum is σ = 23514212022. Its totient is φ = 23514212020.

The previous prime is 23514211979. The next prime is 23514212069. The reversal of 23514212021 is 12021241532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19046760100 + 4467451921 = 138010^2 + 66839^2 .

It is a cyclic number.

It is not a de Polignac number, because 23514212021 - 2²² = 23510017717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23514212921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11757106010 + 11757106011.

It is an arithmetic number, because the mean of its divisors is an integer number (11757106011).

Almost surely, 2^23514212021 is an apocalyptic number.

It is an amenable number.

23514212021 is a deficient number, since it is larger than the sum of its proper divisors (1).

23514212021 is an equidigital number, since it uses as much as digits as its factorization.

23514212021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 23514212021 its reverse (12021241532), we get a palindrome (35535453553).

The spelling of 23514212021 in words is "twenty-three billion, five hundred fourteen million, two hundred twelve thousand, twenty-one".