401423031 has 12 divisors (see below), whose sum is σ = 582368280. Its totient is φ = 266445360.

The previous prime is 401423021. The next prime is 401423041. The reversal of 401423031 is 130324104.

401423031 is a `hidden beast` number, since 401 + 4 + 230 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (401423021) and next prime (401423041).

It is not a de Polignac number, because 401423031 - 2¹⁷ = 401291959 is a prime.

It is a super-2 number, since 2×401423031² = 322280899634453922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401422995 and 401423013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401423021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95325 + ... + 99446.

It is an arithmetic number, because the mean of its divisors is an integer number (48530690).

Almost surely, 2^401423031 is an apocalyptic number.

401423031 is a deficient number, since it is larger than the sum of its proper divisors (180945249).

401423031 is a wasteful number, since it uses less digits than its factorization.

401423031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195006 (or 195003 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 401423031 is about 20035.5441902635. The cubic root of 401423031 is about 737.6790141330.

Adding to 401423031 its reverse (130324104), we get a palindrome (531747135).

The spelling of 401423031 in words is "four hundred one million, four hundred twenty-three thousand, thirty-one".