1315053431123 has 4 divisors (see below), whose sum is σ = 1316450938368. Its totient is φ = 1313655923880.

The previous prime is 1315053431071. The next prime is 1315053431129. The reversal of 1315053431123 is 3211343505131.

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 1315053431123 - 2²⁴ = 1315036653907 is a prime.

It is a super-2 number, since 2×1315053431123² (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 1315053431123.

It is not an unprimeable number, because it can be changed into a prime (1315053431129) 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, 698752211 + ... + 698754092.

It is an arithmetic number, because the mean of its divisors is an integer number (329112734592).

Almost surely, 2^{1315053431123} is an apocalyptic number.

1315053431123 is a deficient number, since it is larger than the sum of its proper divisors (1397507245).

1315053431123 is an equidigital number, since it uses as much as digits as its factorization.

1315053431123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397507244.

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 1315053431123 its reverse (3211343505131), we get a palindrome (4526396936254).

The spelling of 1315053431123 in words is "one trillion, three hundred fifteen billion, fifty-three million, four hundred thirty-one thousand, one hundred twenty-three".