31379103 has 16 divisors (see below), whose sum is σ = 53128960. Its totient is φ = 17930808.

The previous prime is 31379057. The next prime is 31379129. The reversal of 31379103 is 30197313.

It is not a de Polignac number, because 31379103 - 2⁹ = 31378591 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31379143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82825 + ... + 83202.

It is an arithmetic number, because the mean of its divisors is an integer number (3320560).

Almost surely, 2^31379103 is an apocalyptic number.

31379103 is a deficient number, since it is larger than the sum of its proper divisors (21749857).

31379103 is a wasteful number, since it uses less digits than its factorization.

31379103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166043 (or 166037 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 31379103 is about 5601.7053653330. The cubic root of 31379103 is about 315.4134254116.

The spelling of 31379103 in words is "thirty-one million, three hundred seventy-nine thousand, one hundred three".