121366793 has 4 divisors (see below), whose sum is σ = 122252820. Its totient is φ = 120480768.

The previous prime is 121366789. The next prime is 121366823. The reversal of 121366793 is 397663121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397663121 = 103 ⋅3860807.

It can be written as a sum of positive squares in 2 ways, for example, as 97081609 + 24285184 = 9853^2 + 4928^2 .

It is a cyclic number.

It is not a de Polignac number, because 121366793 - 2² = 121366789 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121366493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442808 + ... + 443081.

It is an arithmetic number, because the mean of its divisors is an integer number (30563205).

Almost surely, 2^121366793 is an apocalyptic number.

It is an amenable number.

121366793 is a deficient number, since it is larger than the sum of its proper divisors (886027).

121366793 is an equidigital number, since it uses as much as digits as its factorization.

121366793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886026.

The product of its digits is 40824, while the sum is 38.

The square root of 121366793 is about 11016.6597932404. The cubic root of 121366793 is about 495.1080171033.

The spelling of 121366793 in words is "one hundred twenty-one million, three hundred sixty-six thousand, seven hundred ninety-three".