1240141013 has 4 divisors (see below), whose sum is σ = 1266527040. Its totient is φ = 1213754988.

The previous prime is 1240141003. The next prime is 1240141061. The reversal of 1240141013 is 3101410421.

It is a happy number.

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: 3101410421 = 821 ⋅3777601.

It is a cyclic number.

It is not a de Polignac number, because 1240141013 - 2⁴ = 1240140997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1240140982 and 1240141000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240141003) 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, 13192943 + ... + 13193036.

It is an arithmetic number, because the mean of its divisors is an integer number (316631760).

Almost surely, 2^1240141013 is an apocalyptic number.

It is an amenable number.

1240141013 is a deficient number, since it is larger than the sum of its proper divisors (26386027).

1240141013 is an equidigital number, since it uses as much as digits as its factorization.

1240141013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26386026.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1240141013 is about 35215.6359164505. The cubic root of 1240141013 is about 1074.3777940403.

Adding to 1240141013 its reverse (3101410421), we get a palindrome (4341551434).

The spelling of 1240141013 in words is "one billion, two hundred forty million, one hundred forty-one thousand, thirteen".