123020330113 has 4 divisors (see below), whose sum is σ = 123043559940. Its totient is φ = 122997100288.

The previous prime is 123020330101. The next prime is 123020330143. The reversal of 123020330113 is 311033020321.

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 60303642624 + 62716687489 = 245568^2 + 250433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123020330113 is a prime.

It is a super-2 number, since 2×123020330113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123020330143) 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, 11606968 + ... + 11617561.

It is an arithmetic number, because the mean of its divisors is an integer number (30760889985).

Almost surely, 2^123020330113 is an apocalyptic number.

It is an amenable number.

123020330113 is a deficient number, since it is larger than the sum of its proper divisors (23229827).

123020330113 is an equidigital number, since it uses as much as digits as its factorization.

123020330113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23229826.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 123020330113 its reverse (311033020321), we get a palindrome (434053350434).

The spelling of 123020330113 in words is "one hundred twenty-three billion, twenty million, three hundred thirty thousand, one hundred thirteen".