23470223521 has 2 divisors, whose sum is σ = 23470223522. Its totient is φ = 23470223520.

The previous prime is 23470223519. The next prime is 23470223527. The reversal of 23470223521 is 12532207432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15565057600 + 7905165921 = 124760^2 + 88911^2 .

It is a cyclic number.

It is not a de Polignac number, because 23470223521 - 2¹ = 23470223519 is a prime.

Together with 23470223519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (23470223527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11735111760 + 11735111761.

It is an arithmetic number, because the mean of its divisors is an integer number (11735111761).

Almost surely, 2^23470223521 is an apocalyptic number.

It is an amenable number.

23470223521 is a deficient number, since it is larger than the sum of its proper divisors (1).

23470223521 is an equidigital number, since it uses as much as digits as its factorization.

23470223521 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 23470223521 in words is "twenty-three billion, four hundred seventy million, two hundred twenty-three thousand, five hundred twenty-one".