121404383 has 2 divisors, whose sum is σ = 121404384. Its totient is φ = 121404382.

The previous prime is 121404377. The next prime is 121404449. The reversal of 121404383 is 383404121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121404383 is a prime.

It is a super-2 number, since 2×121404383² = 29478048423221378, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121404313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60702191 + 60702192.

It is an arithmetic number, because the mean of its divisors is an integer number (60702192).

Almost surely, 2^121404383 is an apocalyptic number.

121404383 is a deficient number, since it is larger than the sum of its proper divisors (1).

121404383 is an equidigital number, since it uses as much as digits as its factorization.

121404383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 121404383 is about 11018.3657136619. The cubic root of 121404383 is about 495.1591271552.

The spelling of 121404383 in words is "one hundred twenty-one million, four hundred four thousand, three hundred eighty-three".