401121379 has 2 divisors, whose sum is σ = 401121380. Its totient is φ = 401121378.

The previous prime is 401121373. The next prime is 401121389. The reversal of 401121379 is 973121104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401121379 - 2⁷ = 401121251 is a prime.

It is not a weakly prime, because it can be changed into another prime (401121373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200560689 + 200560690.

It is an arithmetic number, because the mean of its divisors is an integer number (200560690).

Almost surely, 2^401121379 is an apocalyptic number.

401121379 is a deficient number, since it is larger than the sum of its proper divisors (1).

401121379 is an equidigital number, since it uses as much as digits as its factorization.

401121379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 401121379 is about 20028.0148541986. The cubic root of 401121379 is about 737.4941898996.

The spelling of 401121379 in words is "four hundred one million, one hundred twenty-one thousand, three hundred seventy-nine".