331401031 has 8 divisors (see below), whose sum is σ = 358587824. Its totient is φ = 304456320.

The previous prime is 331401029. The next prime is 331401071. The reversal of 331401031 is 130104133.

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

It is a cyclic number.

It is not a de Polignac number, because 331401031 - 2¹ = 331401029 is a prime.

It is a super-2 number, since 2×331401031² = 219653286695725922, 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 = 331400996 and 331401014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331401001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57666 + ... + 63151.

It is an arithmetic number, because the mean of its divisors is an integer number (44823478).

Almost surely, 2^331401031 is an apocalyptic number.

331401031 is a deficient number, since it is larger than the sum of its proper divisors (27186793).

331401031 is a wasteful number, since it uses less digits than its factorization.

331401031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121041.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 331401031 is about 18204.4233910333. The cubic root of 331401031 is about 692.0188935056.

Adding to 331401031 its reverse (130104133), we get a palindrome (461505164).

The spelling of 331401031 in words is "three hundred thirty-one million, four hundred one thousand, thirty-one".