1250313013 has 4 divisors (see below), whose sum is σ = 1266139840. Its totient is φ = 1234486188.

The previous prime is 1250313007. The next prime is 1250313019. The reversal of 1250313013 is 3103130521.

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: 3103130521 = 19 ⋅163322659.

It is an interprime number because it is at equal distance from previous prime (1250313007) and next prime (1250313019).

It is a cyclic number.

It is not a de Polignac number, because 1250313013 - 2⁹ = 1250312501 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 (1250313019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7913295 + ... + 7913452.

It is an arithmetic number, because the mean of its divisors is an integer number (316534960).

Almost surely, 2^1250313013 is an apocalyptic number.

It is an amenable number.

1250313013 is a deficient number, since it is larger than the sum of its proper divisors (15826827).

1250313013 is an equidigital number, since it uses as much as digits as its factorization.

1250313013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15826826.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1250313013 is about 35359.7654545389. The cubic root of 1250313013 is about 1077.3072529871.

Adding to 1250313013 its reverse (3103130521), we get a palindrome (4353443534).

The spelling of 1250313013 in words is "one billion, two hundred fifty million, three hundred thirteen thousand, thirteen".