121135316306131 has 4 divisors (see below), whose sum is σ = 121135370804752. Its totient is φ = 121135261807512.

The previous prime is 121135316306117. The next prime is 121135316306143. The reversal of 121135316306131 is 131603613531121.

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 121135316306131 - 2¹¹ = 121135316304083 is a prime.

It is a super-2 number, since 2×121135316306131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121135316306161) 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, 23766876 + ... + 28410121.

It is an arithmetic number, because the mean of its divisors is an integer number (30283842701188).

Almost surely, 2^{121135316306131} is an apocalyptic number.

121135316306131 is a deficient number, since it is larger than the sum of its proper divisors (54498621).

121135316306131 is an equidigital number, since it uses as much as digits as its factorization.

121135316306131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54498620.

The product of its (nonzero) digits is 29160, while the sum is 37.

Adding to 121135316306131 its reverse (131603613531121), we get a palindrome (252738929837252).

The spelling of 121135316306131 in words is "one hundred twenty-one trillion, one hundred thirty-five billion, three hundred sixteen million, three hundred six thousand, one hundred thirty-one".