993153015121 has 4 divisors (see below), whose sum is σ = 1016249596912. Its totient is φ = 970056433332.

The previous prime is 993153015077. The next prime is 993153015161. The reversal of 993153015121 is 121510351399.

993153015121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a de Polignac number, because none of the positive numbers 2^k-993153015121 is a prime.

It is a super-2 number, since 2×993153015121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (993153015161) 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, 11548290831 + ... + 11548290916.

It is an arithmetic number, because the mean of its divisors is an integer number (254062399228).

Almost surely, 2^993153015121 is an apocalyptic number.

It is an amenable number.

993153015121 is a deficient number, since it is larger than the sum of its proper divisors (23096581791).

993153015121 is a wasteful number, since it uses less digits than its factorization.

993153015121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23096581790.

The product of its (nonzero) digits is 36450, while the sum is 40.

The spelling of 993153015121 in words is "nine hundred ninety-three billion, one hundred fifty-three million, fifteen thousand, one hundred twenty-one".