1121401199 has 2 divisors, whose sum is σ = 1121401200. Its totient is φ = 1121401198.

The previous prime is 1121401181. The next prime is 1121401201. The reversal of 1121401199 is 9911041211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121401199 - 2²⁴ = 1104623983 is a prime.

Together with 1121401201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121401499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560700599 + 560700600.

It is an arithmetic number, because the mean of its divisors is an integer number (560700600).

Almost surely, 2^1121401199 is an apocalyptic number.

1121401199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121401199 is an equidigital number, since it uses as much as digits as its factorization.

1121401199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 1121401199 is about 33487.3289320005. The cubic root of 1121401199 is about 1038.9317183169.

The spelling of 1121401199 in words is "one billion, one hundred twenty-one million, four hundred one thousand, one hundred ninety-nine".