31002117 has 8 divisors (see below), whose sum is σ = 41486496. Its totient is φ = 20592912.

The previous prime is 31002089. The next prime is 31002121. The reversal of 31002117 is 71120013.

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

It is not a de Polignac number, because 31002117 - 2⁷ = 31001989 is a prime.

It is a super-2 number, since 2×31002117² = 1922262516963378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31002096 and 31002105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31002157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17823 + ... + 19484.

It is an arithmetic number, because the mean of its divisors is an integer number (5185812).

Almost surely, 2^31002117 is an apocalyptic number.

It is an amenable number.

31002117 is a deficient number, since it is larger than the sum of its proper divisors (10484379).

31002117 is a wasteful number, since it uses less digits than its factorization.

31002117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37587.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 31002117 is about 5567.9544717966. The cubic root of 31002117 is about 314.1452159396.

The spelling of 31002117 in words is "thirty-one million, two thousand, one hundred seventeen".