20130102232001 has 4 divisors (see below), whose sum is σ = 20202774081492. Its totient is φ = 20057430382512.

The previous prime is 20130102231989. The next prime is 20130102232069. The reversal of 20130102232001 is 10023220103102.

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 12346783412401 + 7783318819600 = 3513799^2 + 2789860^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130102232001 - 2²⁶ = 20130035123137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130102432001) 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, 36335924330 + ... + 36335924883.

It is an arithmetic number, because the mean of its divisors is an integer number (5050693520373).

Almost surely, 2^{20130102232001} is an apocalyptic number.

It is an amenable number.

20130102232001 is a deficient number, since it is larger than the sum of its proper divisors (72671849491).

20130102232001 is an equidigital number, since it uses as much as digits as its factorization.

20130102232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72671849490.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20130102232001 its reverse (10023220103102), we get a palindrome (30153322335103).

The spelling of 20130102232001 in words is "twenty trillion, one hundred thirty billion, one hundred two million, two hundred thirty-two thousand, one".