1125013031 has 8 divisors (see below), whose sum is σ = 1132704000. Its totient is φ = 1117338040.

The previous prime is 1125012989. The next prime is 1125013039. The reversal of 1125013031 is 1303105211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125013031 is a prime.

It is a super-2 number, since 2×1125013031² = 2531308639839613922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125013039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159620 + ... + 166518.

It is an arithmetic number, because the mean of its divisors is an integer number (141588000).

Almost surely, 2^1125013031 is an apocalyptic number.

1125013031 is a deficient number, since it is larger than the sum of its proper divisors (7690969).

1125013031 is an equidigital number, since it uses as much as digits as its factorization.

1125013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1125013031 is about 33541.2139166131. The cubic root of 1125013031 is about 1040.0459271508.

Adding to 1125013031 its reverse (1303105211), we get a palindrome (2428118242).

The spelling of 1125013031 in words is "one billion, one hundred twenty-five million, thirteen thousand, thirty-one".