121087662273653 has 2 divisors, whose sum is σ = 121087662273654. Its totient is φ = 121087662273652.

The previous prime is 121087662273619. The next prime is 121087662273673. The reversal of 121087662273653 is 356372266780121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73583490798724 + 47504171474929 = 8578082^2 + 6892327^2 .

It is a cyclic number.

It is not a de Polignac number, because 121087662273653 - 2²⁸ = 121087393838197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121087662273592 and 121087662273601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121087662273673) 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, 60543831136826 + 60543831136827.

It is an arithmetic number, because the mean of its divisors is an integer number (60543831136827).

Almost surely, 2^{121087662273653} is an apocalyptic number.

It is an amenable number.

121087662273653 is a deficient number, since it is larger than the sum of its proper divisors (1).

121087662273653 is an equidigital number, since it uses as much as digits as its factorization.

121087662273653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 121087662273653 in words is "one hundred twenty-one trillion, eighty-seven billion, six hundred sixty-two million, two hundred seventy-three thousand, six hundred fifty-three".