1315000011251 has 8 divisors (see below), whose sum is σ = 1345819466880. Its totient is φ = 1284403079232.

The previous prime is 1315000011223. The next prime is 1315000011289. The reversal of 1315000011251 is 1521100005131.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1315000011251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315000010251) 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, 55618946 + ... + 55642583.

It is an arithmetic number, because the mean of its divisors is an integer number (168227433360).

Almost surely, 2^{1315000011251} is an apocalyptic number.

1315000011251 is a deficient number, since it is larger than the sum of its proper divisors (30819455629).

1315000011251 is a wasteful number, since it uses less digits than its factorization.

1315000011251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111261805.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 1315000011251 its reverse (1521100005131), we get a palindrome (2836100016382).

The spelling of 1315000011251 in words is "one trillion, three hundred fifteen billion, eleven thousand, two hundred fifty-one".