121383793 has 2 divisors, whose sum is σ = 121383794. Its totient is φ = 121383792.

The previous prime is 121383767. The next prime is 121383863. The reversal of 121383793 is 397383121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60730849 + 60652944 = 7793^2 + 7788^2 .

It is a cyclic number.

It is not a de Polignac number, because 121383793 - 2²¹ = 119286641 is a prime.

It is not a weakly prime, because it can be changed into another prime (121383733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60691896 + 60691897.

It is an arithmetic number, because the mean of its divisors is an integer number (60691897).

Almost surely, 2^121383793 is an apocalyptic number.

It is an amenable number.

121383793 is a deficient number, since it is larger than the sum of its proper divisors (1).

121383793 is an equidigital number, since it uses as much as digits as its factorization.

121383793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 37.

The square root of 121383793 is about 11017.4313249505. The cubic root of 121383793 is about 495.1311328258.

It can be divided in two parts, 12138 and 3793, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 121383793 in words is "one hundred twenty-one million, three hundred eighty-three thousand, seven hundred ninety-three".