401791303 has 2 divisors, whose sum is σ = 401791304. Its totient is φ = 401791302.

The previous prime is 401791261. The next prime is 401791319. The reversal of 401791303 is 303197104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401791303 - 2²⁵ = 368236871 is a prime.

It is a super-2 number, since 2×401791303² = 322872502332875618, which contains 22 as substring.

It is equal to p_21426616 and since 401791303 and 21426616 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401791373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200895651 + 200895652.

It is an arithmetic number, because the mean of its divisors is an integer number (200895652).

Almost surely, 2^401791303 is an apocalyptic number.

401791303 is a deficient number, since it is larger than the sum of its proper divisors (1).

401791303 is an equidigital number, since it uses as much as digits as its factorization.

401791303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 401791303 is about 20044.7325499743. The cubic root of 401791303 is about 737.9045314137.

The spelling of 401791303 in words is "four hundred one million, seven hundred ninety-one thousand, three hundred three".