121416502115131 has 16 divisors (see below), whose sum is σ = 129538792131840. Its totient is φ = 113405752995840.

The previous prime is 121416502115123. The next prime is 121416502115221. The reversal of 121416502115131 is 131511205614121.

It is a cyclic number.

It is not a de Polignac number, because 121416502115131 - 2³ = 121416502115123 is a prime.

It is a super-2 number, since 2×121416502115131² (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 (121416502115231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39715446 + ... + 42663211.

It is an arithmetic number, because the mean of its divisors is an integer number (8096174508240).

Almost surely, 2^{121416502115131} is an apocalyptic number.

121416502115131 is a deficient number, since it is larger than the sum of its proper divisors (8122290016709).

121416502115131 is a wasteful number, since it uses less digits than its factorization.

121416502115131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82379334.

The product of its (nonzero) digits is 7200, while the sum is 34.

Adding to 121416502115131 its reverse (131511205614121), we get a palindrome (252927707729252).

The spelling of 121416502115131 in words is "one hundred twenty-one trillion, four hundred sixteen billion, five hundred two million, one hundred fifteen thousand, one hundred thirty-one".