1013304251231 has 4 divisors (see below), whose sum is σ = 1016910316464. Its totient is φ = 1009698186000.

The previous prime is 1013304251227. The next prime is 1013304251251. The reversal of 1013304251231 is 1321524033101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1013304251231 - 2² = 1013304251227 is a prime.

It is a super-2 number, since 2×1013304251231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1013304251231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013304251221) 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, 1803032195 + ... + 1803032756.

It is an arithmetic number, because the mean of its divisors is an integer number (254227579116).

Almost surely, 2^{1013304251231} is an apocalyptic number.

1013304251231 is a deficient number, since it is larger than the sum of its proper divisors (3606065233).

1013304251231 is an equidigital number, since it uses as much as digits as its factorization.

1013304251231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606065232.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 1013304251231 its reverse (1321524033101), we get a palindrome (2334828284332).

The spelling of 1013304251231 in words is "one trillion, thirteen billion, three hundred four million, two hundred fifty-one thousand, two hundred thirty-one".