1123013031 has 16 divisors (see below), whose sum is σ = 1801324800. Its totient is φ = 607946688.

The previous prime is 1123013029. The next prime is 1123013033. The reversal of 1123013031 is 1303103211.

It is an interprime number because it is at equal distance from previous prime (1123013029) and next prime (1123013033).

It is not a de Polignac number, because 1123013031 - 2¹ = 1123013029 is a prime.

It is a super-2 number, since 2×1123013031² = 2522316535591613922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123013031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123013033) 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, 1406886 + ... + 1407683.

It is an arithmetic number, because the mean of its divisors is an integer number (112582800).

Almost surely, 2^1123013031 is an apocalyptic number.

1123013031 is a deficient number, since it is larger than the sum of its proper divisors (678311769).

1123013031 is a wasteful number, since it uses less digits than its factorization.

1123013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2814598.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1123013031 is about 33511.3865872482. The cubic root of 1123013031 is about 1039.4292451958.

Adding to 1123013031 its reverse (1303103211), we get a palindrome (2426116242).

The spelling of 1123013031 in words is "one billion, one hundred twenty-three million, thirteen thousand, thirty-one".