1125380013 has 16 divisors (see below), whose sum is σ = 1618008000. Its totient is φ = 693429120.

The previous prime is 1125379999. The next prime is 1125380021. The reversal of 1125380013 is 3100835211.

It is not a de Polignac number, because 1125380013 - 2⁸ = 1125379757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125380063) 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, 238438 + ... + 243111.

It is an arithmetic number, because the mean of its divisors is an integer number (101125500).

Almost surely, 2^1125380013 is an apocalyptic number.

It is an amenable number.

1125380013 is a deficient number, since it is larger than the sum of its proper divisors (492627987).

1125380013 is a wasteful number, since it uses less digits than its factorization.

1125380013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481612.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1125380013 is about 33546.6840835275. The cubic root of 1125380013 is about 1040.1590033641.

The spelling of 1125380013 in words is "one billion, one hundred twenty-five million, three hundred eighty thousand, thirteen".