31012093 has 4 divisors (see below), whose sum is σ = 35442400. Its totient is φ = 26581788.

The previous prime is 31012043. The next prime is 31012099. The reversal of 31012093 is 39021013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31012093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31012093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31012099) 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, 2215143 + ... + 2215156.

It is an arithmetic number, because the mean of its divisors is an integer number (8860600).

Almost surely, 2^31012093 is an apocalyptic number.

It is an amenable number.

31012093 is a deficient number, since it is larger than the sum of its proper divisors (4430307).

31012093 is an equidigital number, since it uses as much as digits as its factorization.

31012093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430306.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 31012093 is about 5568.8502403997. The cubic root of 31012093 is about 314.1789080107.

It can be divided in two parts, 310 and 12093, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 31012093 in words is "thirty-one million, twelve thousand, ninety-three".