23521530424229 has 2 divisors, whose sum is σ = 23521530424230. Its totient is φ = 23521530424228.

The previous prime is 23521530424213. The next prime is 23521530424277. The reversal of 23521530424229 is 92242403512532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14835554373025 + 8685976051204 = 3851695^2 + 2947198^2 .

It is a cyclic number.

It is not a de Polignac number, because 23521530424229 - 2⁴ = 23521530424213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23521530424229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23521530424429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11760765212114 + 11760765212115.

It is an arithmetic number, because the mean of its divisors is an integer number (11760765212115).

Almost surely, 2^{23521530424229} is an apocalyptic number.

It is an amenable number.

23521530424229 is a deficient number, since it is larger than the sum of its proper divisors (1).

23521530424229 is an equidigital number, since it uses as much as digits as its factorization.

23521530424229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1036800, while the sum is 44.

The spelling of 23521530424229 in words is "twenty-three trillion, five hundred twenty-one billion, five hundred thirty million, four hundred twenty-four thousand, two hundred twenty-nine".