123020013033 has 10 divisors (see below), whose sum is σ = 183770636874. Its totient is φ = 82013341968.

The previous prime is 123020013019. The next prime is 123020013049. The reversal of 123020013033 is 330310020321.

It can be written as a sum of positive squares in only one way, i.e., 76103153424 + 46916859609 = 275868^2 + 216603^2 .

It is not a de Polignac number, because 123020013033 - 2¹⁰ = 123020012009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123020012997 and 123020013015.

It is not an unprimeable number, because it can be changed into a prime (123020013733) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 759382716 + ... + 759382877.

Almost surely, 2^123020013033 is an apocalyptic number.

It is an amenable number.

123020013033 is a deficient number, since it is larger than the sum of its proper divisors (60750623841).

123020013033 is an equidigital number, since it uses as much as digits as its factorization.

123020013033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518765605 (or 1518765596 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 123020013033 its reverse (330310020321), we get a palindrome (453330033354).

The spelling of 123020013033 in words is "one hundred twenty-three billion, twenty million, thirteen thousand, thirty-three".