1312141511 has 8 divisors (see below), whose sum is σ = 1383000480. Its totient is φ = 1242990112.

The previous prime is 1312141489. The next prime is 1312141561. The reversal of 1312141511 is 1151412131.

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

It is a de Polignac number, because none of the positive numbers 2^k-1312141511 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 (1312141561) 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, 425315 + ... + 428388.

It is an arithmetic number, because the mean of its divisors is an integer number (172875060).

Almost surely, 2^1312141511 is an apocalyptic number.

1312141511 is a deficient number, since it is larger than the sum of its proper divisors (70858969).

1312141511 is an equidigital number, since it uses as much as digits as its factorization.

1312141511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853785.

The product of its digits is 120, while the sum is 20.

The square root of 1312141511 is about 36223.4939093401. The cubic root of 1312141511 is about 1094.7800927561.

Adding to 1312141511 its reverse (1151412131), we get a palindrome (2463553642).

The spelling of 1312141511 in words is "one billion, three hundred twelve million, one hundred forty-one thousand, five hundred eleven".