1253231013 has 8 divisors (see below), whose sum is σ = 1758920800. Its totient is φ = 791514288.

The previous prime is 1253231009. The next prime is 1253231059. The reversal of 1253231013 is 3101323521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1253231013 - 2² = 1253231009 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 (1253231003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10993198 + ... + 10993311.

It is an arithmetic number, because the mean of its divisors is an integer number (219865100).

Almost surely, 2^1253231013 is an apocalyptic number.

It is an amenable number.

1253231013 is a deficient number, since it is larger than the sum of its proper divisors (505689787).

1253231013 is a wasteful number, since it uses less digits than its factorization.

1253231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21986531.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1253231013 is about 35401.0029942656. The cubic root of 1253231013 is about 1078.1446806775.

Adding to 1253231013 its reverse (3101323521), we get a palindrome (4354554534).

The spelling of 1253231013 in words is "one billion, two hundred fifty-three million, two hundred thirty-one thousand, thirteen".