2015042031 has 6 divisors (see below), whose sum is σ = 2910616280. Its totient is φ = 1343361348.

The previous prime is 2015042009. The next prime is 2015042039. The reversal of 2015042031 is 1302405102.

It is not a de Polignac number, because 2015042031 - 2⁶ = 2015041967 is a prime.

It is a super-2 number, since 2×2015042031² = 8120788773393209922, 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 = 2015041995 and 2015042013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015042039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111946771 + ... + 111946788.

Almost surely, 2^2015042031 is an apocalyptic number.

2015042031 is a deficient number, since it is larger than the sum of its proper divisors (895574249).

2015042031 is a wasteful number, since it uses less digits than its factorization.

2015042031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223893565 (or 223893562 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2015042031 is about 44889.2195409989. The cubic root of 2015042031 is about 1263.0717927004.

Adding to 2015042031 its reverse (1302405102), we get a palindrome (3317447133).

The spelling of 2015042031 in words is "two billion, fifteen million, forty-two thousand, thirty-one".