1244325013 has 16 divisors (see below), whose sum is σ = 1357209216. Its totient is φ = 1136217600.

The previous prime is 1244325007. The next prime is 1244325023. The reversal of 1244325013 is 3105234421.

It is a cyclic number.

It is not a de Polignac number, because 1244325013 - 2⁵ = 1244324981 is a prime.

It is a super-3 number, since 3×1244325013³ (a number of 28 digits) contains 333 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 (1244325023) 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, 104745 + ... + 116017.

It is an arithmetic number, because the mean of its divisors is an integer number (84825576).

Almost surely, 2^1244325013 is an apocalyptic number.

It is an amenable number.

1244325013 is a deficient number, since it is larger than the sum of its proper divisors (112884203).

1244325013 is a wasteful number, since it uses less digits than its factorization.

1244325013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11484.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1244325013 is about 35274.9913253001. The cubic root of 1244325013 is about 1075.5846865857.

Adding to 1244325013 its reverse (3105234421), we get a palindrome (4349559434).

The spelling of 1244325013 in words is "one billion, two hundred forty-four million, three hundred twenty-five thousand, thirteen".