13130310123021 has 64 divisors (see below), whose sum is σ = 22682984067072. Its totient is φ = 6566126257152.

The previous prime is 13130310123013. The next prime is 13130310123037. The reversal of 13130310123021 is 12032101303131.

It is a happy number.

It is not a de Polignac number, because 13130310123021 - 2³ = 13130310123013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130310123001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8543335 + ... + 9962388.

It is an arithmetic number, because the mean of its divisors is an integer number (354421626048).

Almost surely, 2^{13130310123021} is an apocalyptic number.

It is an amenable number.

13130310123021 is a deficient number, since it is larger than the sum of its proper divisors (9552673944051).

13130310123021 is a wasteful number, since it uses less digits than its factorization.

13130310123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18505882.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 13130310123021 its reverse (12032101303131), we get a palindrome (25162411426152).

The spelling of 13130310123021 in words is "thirteen trillion, one hundred thirty billion, three hundred ten million, one hundred twenty-three thousand, twenty-one".