401187323 has 2 divisors, whose sum is σ = 401187324. Its totient is φ = 401187322.

The previous prime is 401187257. The next prime is 401187329. The reversal of 401187323 is 323781104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401187323 - 2¹⁰ = 401186299 is a prime.

It is not a weakly prime, because it can be changed into another prime (401187329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200593661 + 200593662.

It is an arithmetic number, because the mean of its divisors is an integer number (200593662).

Almost surely, 2^401187323 is an apocalyptic number.

401187323 is a deficient number, since it is larger than the sum of its proper divisors (1).

401187323 is an equidigital number, since it uses as much as digits as its factorization.

401187323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 401187323 is about 20029.6610805076. The cubic root of 401187323 is about 737.5346021494.

The spelling of 401187323 in words is "four hundred one million, one hundred eighty-seven thousand, three hundred twenty-three".