1000112031 has 6 divisors (see below), whose sum is σ = 1444606280. Its totient is φ = 666741348.

The previous prime is 1000112027. The next prime is 1000112039. The reversal of 1000112031 is 1302110001.

It is not a de Polignac number, because 1000112031 - 2² = 1000112027 is a prime.

It is a super-2 number, since 2×1000112031² = 2000448149101889922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 111123559 = 1000112031 / (1 + 0 + 0 + 0 + 1 + 1 + 2 + 0 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000112039) 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, 55561771 + ... + 55561788.

Almost surely, 2^1000112031 is an apocalyptic number.

1000112031 is a deficient number, since it is larger than the sum of its proper divisors (444494249).

1000112031 is a wasteful number, since it uses less digits than its factorization.

1000112031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111123565 (or 111123562 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1000112031 is about 31624.5479177173. The cubic root of 1000112031 is about 1000.0373422722.

Adding to 1000112031 its reverse (1302110001), we get a palindrome (2302222032).

The spelling of 1000112031 in words is "one billion, one hundred twelve thousand, thirty-one".