123133430013 has 24 divisors (see below), whose sum is σ = 180479612544. Its totient is φ = 74618216640.

The previous prime is 123133429973. The next prime is 123133430023. The reversal of 123133430013 is 310034331321.

It is a happy number.

It is not a de Polignac number, because 123133430013 - 2¹⁴ = 123133413629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133430023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6570745 + ... + 6589457.

It is an arithmetic number, because the mean of its divisors is an integer number (7519983856).

Almost surely, 2^123133430013 is an apocalyptic number.

It is an amenable number.

123133430013 is a deficient number, since it is larger than the sum of its proper divisors (57346182531).

123133430013 is a wasteful number, since it uses less digits than its factorization.

123133430013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36865 (or 36854 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 123133430013 its reverse (310034331321), we get a palindrome (433167761334).

The spelling of 123133430013 in words is "one hundred twenty-three billion, one hundred thirty-three million, four hundred thirty thousand, thirteen".