120203232013 has 4 divisors (see below), whose sum is σ = 121651463808. Its totient is φ = 118755000220.

The previous prime is 120203231999. The next prime is 120203232031. The reversal of 120203232013 is 310232302021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310232302021 = 12809 ⋅24219869.

It is a cyclic number.

It is not a de Polignac number, because 120203232013 - 2²⁵ = 120169677581 is a prime.

It is a super-2 number, since 2×120203232013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120203230013) 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, 724115773 + ... + 724115938.

It is an arithmetic number, because the mean of its divisors is an integer number (30412865952).

Almost surely, 2^120203232013 is an apocalyptic number.

It is an amenable number.

120203232013 is a deficient number, since it is larger than the sum of its proper divisors (1448231795).

120203232013 is an equidigital number, since it uses as much as digits as its factorization.

120203232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448231794.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 120203232013 its reverse (310232302021), we get a palindrome (430435534034).

The spelling of 120203232013 in words is "one hundred twenty billion, two hundred three million, two hundred thirty-two thousand, thirteen".