331201031 has 8 divisors (see below), whose sum is σ = 379336704. Its totient is φ = 283270680.

The previous prime is 331201019. The next prime is 331201037. The reversal of 331201031 is 130102133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 331201031 - 2¹⁴ = 331184647 is a prime.

It is a super-2 number, since 2×331201031² = 219388245870925922, 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 = 331200997 and 331201015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331201037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47855 + ... + 54336.

It is an arithmetic number, because the mean of its divisors is an integer number (47417088).

Almost surely, 2^331201031 is an apocalyptic number.

331201031 is a deficient number, since it is larger than the sum of its proper divisors (48135673).

331201031 is a wasteful number, since it uses less digits than its factorization.

331201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102661.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 331201031 is about 18198.9293915878. The cubic root of 331201031 is about 691.8796547211.

Adding to 331201031 its reverse (130102133), we get a palindrome (461303164).

The spelling of 331201031 in words is "three hundred thirty-one million, two hundred one thousand, thirty-one".