121131032311013 has 4 divisors (see below), whose sum is σ = 121277502725760. Its totient is φ = 120984561896268.

The previous prime is 121131032310973. The next prime is 121131032311019. The reversal of 121131032311013 is 310113230131121.

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-121131032311013 is a prime.

It is a super-2 number, since 2×121131032311013² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121131032311013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121131032311019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73235206133 + ... + 73235207786.

It is an arithmetic number, because the mean of its divisors is an integer number (30319375681440).

Almost surely, 2^{121131032311013} is an apocalyptic number.

It is an amenable number.

121131032311013 is a deficient number, since it is larger than the sum of its proper divisors (146470414747).

121131032311013 is an equidigital number, since it uses as much as digits as its factorization.

121131032311013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146470414746.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 121131032311013 its reverse (310113230131121), we get a palindrome (431244262442134).

The spelling of 121131032311013 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, thirty-two million, three hundred eleven thousand, thirteen".