401203131 has 24 divisors (see below), whose sum is σ = 623028240. Its totient is φ = 228981312.

The previous prime is 401203129. The next prime is 401203133. The reversal of 401203131 is 131302104.

It is an interprime number because it is at equal distance from previous prime (401203129) and next prime (401203133).

It is not a de Polignac number, because 401203131 - 2¹ = 401203129 is a prime.

It is a super-2 number, since 2×401203131² = 321927904648406322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401203131.

It is not an unprimeable number, because it can be changed into a prime (401203133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233905 + ... + 235613.

It is an arithmetic number, because the mean of its divisors is an integer number (25959510).

Almost surely, 2^401203131 is an apocalyptic number.

401203131 is a deficient number, since it is larger than the sum of its proper divisors (221825109).

401203131 is a wasteful number, since it uses less digits than its factorization.

401203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323 (or 3316 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 401203131 is about 20030.0556913854. The cubic root of 401203131 is about 737.5442890572.

Adding to 401203131 its reverse (131302104), we get a palindrome (532505235).

The spelling of 401203131 in words is "four hundred one million, two hundred three thousand, one hundred thirty-one".