121293331 has 2 divisors, whose sum is σ = 121293332. Its totient is φ = 121293330.

The previous prime is 121293299. The next prime is 121293343. The reversal of 121293331 is 133392121.

It is a strong prime.

It is an emirp because it is prime and its reverse (133392121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121293331 - 2⁵ = 121293299 is a prime.

It is a super-2 number, since 2×121293331² = 29424144290151122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121293296 and 121293305.

It is not a weakly prime, because it can be changed into another prime (121293371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60646665 + 60646666.

It is an arithmetic number, because the mean of its divisors is an integer number (60646666).

Almost surely, 2^121293331 is an apocalyptic number.

121293331 is a deficient number, since it is larger than the sum of its proper divisors (1).

121293331 is an equidigital number, since it uses as much as digits as its factorization.

121293331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 25.

The square root of 121293331 is about 11013.3251563731. The cubic root of 121293331 is about 495.0081024419.

The spelling of 121293331 in words is "one hundred twenty-one million, two hundred ninety-three thousand, three hundred thirty-one".