121210118016131 has 2 divisors, whose sum is σ = 121210118016132. Its totient is φ = 121210118016130.

The previous prime is 121210118016073. The next prime is 121210118016199. The reversal of 121210118016131 is 131610811012121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121210118016131 is a prime.

It is a super-2 number, since 2×121210118016131² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121210118016094 and 121210118016103.

It is not a weakly prime, because it can be changed into another prime (121210118010131) 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 as a sum of consecutive naturals, namely, 60605059008065 + 60605059008066.

It is an arithmetic number, because the mean of its divisors is an integer number (60605059008066).

Almost surely, 2^{121210118016131} is an apocalyptic number.

121210118016131 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210118016131 is an equidigital number, since it uses as much as digits as its factorization.

121210118016131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 29.

Adding to 121210118016131 its reverse (131610811012121), we get a palindrome (252820929028252).

The spelling of 121210118016131 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred eighteen million, sixteen thousand, one hundred thirty-one".