23405014265021 has 4 divisors (see below), whose sum is σ = 23408142866844. Its totient is φ = 23401885663200.

The previous prime is 23405014264979. The next prime is 23405014265027. The reversal of 23405014265021 is 12056241050432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9041778372025 + 14363235892996 = 3006955^2 + 3789886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23405014265021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23405014265027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1564289690 + ... + 1564304651.

It is an arithmetic number, because the mean of its divisors is an integer number (5852035716711).

Almost surely, 2^{23405014265021} is an apocalyptic number.

It is an amenable number.

23405014265021 is a deficient number, since it is larger than the sum of its proper divisors (3128601823).

23405014265021 is an equidigital number, since it uses as much as digits as its factorization.

23405014265021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128601822.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 23405014265021 in words is "twenty-three trillion, four hundred five billion, fourteen million, two hundred sixty-five thousand, twenty-one".