1240111013 has 16 divisors (see below), whose sum is σ = 1298436480. Its totient is φ = 1183326144.

The previous prime is 1240111007. The next prime is 1240111031. The reversal of 1240111013 is 3101110421.

It is a cyclic number.

It is not a de Polignac number, because 1240111013 - 2²⁸ = 971675557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598343 + ... + 600411.

It is an arithmetic number, because the mean of its divisors is an integer number (81152280).

Almost surely, 2^1240111013 is an apocalyptic number.

It is an amenable number.

1240111013 is a deficient number, since it is larger than the sum of its proper divisors (58325467).

1240111013 is a wasteful number, since it uses less digits than its factorization.

1240111013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1240111013 is about 35215.2099667175. The cubic root of 1240111013 is about 1074.3691306186.

Adding to 1240111013 its reverse (3101110421), we get a palindrome (4341221434).

The spelling of 1240111013 in words is "one billion, two hundred forty million, one hundred eleven thousand, thirteen".