331001113 has 4 divisors (see below), whose sum is σ = 331037748. Its totient is φ = 330964480.

The previous prime is 331001107. The next prime is 331001131. The reversal of 331001113 is 311100133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 307932304 + 23068809 = 17548^2 + 4803^2 .

It is a cyclic number.

It is not a de Polignac number, because 331001113 - 2⁵ = 331001081 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331001093 and 331001102.

It is not an unprimeable number, because it can be changed into a prime (331071113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5973 + ... + 26413.

It is an arithmetic number, because the mean of its divisors is an integer number (82759437).

Almost surely, 2^331001113 is an apocalyptic number.

It is an amenable number.

331001113 is a deficient number, since it is larger than the sum of its proper divisors (36635).

331001113 is a wasteful number, since it uses less digits than its factorization.

331001113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36634.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 331001113 is about 18193.4359866409. The cubic root of 331001113 is about 691.7404169936.

Adding to 331001113 its reverse (311100133), we get a palindrome (642101246).

The spelling of 331001113 in words is "three hundred thirty-one million, one thousand, one hundred thirteen".