121694631683 has 2 divisors, whose sum is σ = 121694631684. Its totient is φ = 121694631682.

The previous prime is 121694631679. The next prime is 121694631727. The reversal of 121694631683 is 386136496121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121694631683 - 2² = 121694631679 is a prime.

It is a super-2 number, since 2×121694631683² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121694631613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60847315841 + 60847315842.

It is an arithmetic number, because the mean of its divisors is an integer number (60847315842).

Almost surely, 2^121694631683 is an apocalyptic number.

121694631683 is a deficient number, since it is larger than the sum of its proper divisors (1).

121694631683 is an equidigital number, since it uses as much as digits as its factorization.

121694631683 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The spelling of 121694631683 in words is "one hundred twenty-one billion, six hundred ninety-four million, six hundred thirty-one thousand, six hundred eighty-three".