121993763 has 2 divisors, whose sum is σ = 121993764. Its totient is φ = 121993762.

The previous prime is 121993741. The next prime is 121993789. The reversal of 121993763 is 367399121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121993763 - 2⁸ = 121993507 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121993763.

It is not a weakly prime, because it can be changed into another prime (121993723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60996881 + 60996882.

It is an arithmetic number, because the mean of its divisors is an integer number (60996882).

Almost surely, 2^121993763 is an apocalyptic number.

121993763 is a deficient number, since it is larger than the sum of its proper divisors (1).

121993763 is an equidigital number, since it uses as much as digits as its factorization.

121993763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 41.

The square root of 121993763 is about 11045.0786778547. The cubic root of 121993763 is about 495.9591144650.

The spelling of 121993763 in words is "one hundred twenty-one million, nine hundred ninety-three thousand, seven hundred sixty-three".