1124072013 has 4 divisors (see below), whose sum is σ = 1498762688. Its totient is φ = 749381340.

The previous prime is 1124072009. The next prime is 1124072021. The reversal of 1124072013 is 3102704211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3102704211 = 3 ⋅1034234737.

It is not a de Polignac number, because 1124072013 - 2² = 1124072009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124072413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187345333 + ... + 187345338.

It is an arithmetic number, because the mean of its divisors is an integer number (374690672).

Almost surely, 2^1124072013 is an apocalyptic number.

It is an amenable number.

1124072013 is a deficient number, since it is larger than the sum of its proper divisors (374690675).

1124072013 is an equidigital number, since it uses as much as digits as its factorization.

1124072013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374690674.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1124072013 is about 33527.1831951329. The cubic root of 1124072013 is about 1039.7558638606.

Adding to 1124072013 its reverse (3102704211), we get a palindrome (4226776224).

The spelling of 1124072013 in words is "one billion, one hundred twenty-four million, seventy-two thousand, thirteen".