1233121300013 has 4 divisors (see below), whose sum is σ = 1237137982080. Its totient is φ = 1229104617948.

The previous prime is 1233121299899. The next prime is 1233121300049. The reversal of 1233121300013 is 3100031213321.

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.

It is a cyclic number.

It is not a de Polignac number, because 1233121300013 - 2⁸ = 1233121299757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1233121600013) 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, 2008340573 + ... + 2008341186.

It is an arithmetic number, because the mean of its divisors is an integer number (309284495520).

Almost surely, 2^{1233121300013} is an apocalyptic number.

It is an amenable number.

1233121300013 is a deficient number, since it is larger than the sum of its proper divisors (4016682067).

1233121300013 is an equidigital number, since it uses as much as digits as its factorization.

1233121300013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016682066.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1233121300013 its reverse (3100031213321), we get a palindrome (4333152513334).

The spelling of 1233121300013 in words is "one trillion, two hundred thirty-three billion, one hundred twenty-one million, three hundred thousand, thirteen".