13121023112003 has 4 divisors (see below), whose sum is σ = 13121060440320. Its totient is φ = 13120985783688.

The previous prime is 13121023111969. The next prime is 13121023112011. The reversal of 13121023112003 is 30021132012131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13121023112003 - 2³⁰ = 13119949370179 is a prime.

It is a super-2 number, since 2×13121023112003² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121023112203) 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, 18131843 + ... + 18841596.

It is an arithmetic number, because the mean of its divisors is an integer number (3280265110080).

Almost surely, 2^{13121023112003} is an apocalyptic number.

13121023112003 is a deficient number, since it is larger than the sum of its proper divisors (37328317).

13121023112003 is an equidigital number, since it uses as much as digits as its factorization.

13121023112003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37328316.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13121023112003 its reverse (30021132012131), we get a palindrome (43142155124134).

The spelling of 13121023112003 in words is "thirteen trillion, one hundred twenty-one billion, twenty-three million, one hundred twelve thousand, three".