401573123 has 16 divisors (see below), whose sum is σ = 489093120. Its totient is φ = 322228896.

The previous prime is 401573119. The next prime is 401573141. The reversal of 401573123 is 321375104.

It is not a de Polignac number, because 401573123 - 2² = 401573119 is a prime.

It is a super-2 number, since 2×401573123² = 322521946231946258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401573092 and 401573101.

It is not an unprimeable number, because it can be changed into a prime (401573323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18968 + ... + 34101.

It is an arithmetic number, because the mean of its divisors is an integer number (30568320).

Almost surely, 2^401573123 is an apocalyptic number.

401573123 is a deficient number, since it is larger than the sum of its proper divisors (87519997).

401573123 is a wasteful number, since it uses less digits than its factorization.

401573123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53146.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 401573123 is about 20039.2894834123. The cubic root of 401573123 is about 737.7709420275.

The spelling of 401573123 in words is "four hundred one million, five hundred seventy-three thousand, one hundred twenty-three".