1312511242618 has 8 divisors (see below), whose sum is σ = 1988259605460. Its totient is φ = 649758040800.

The previous prime is 1312511242579. The next prime is 1312511242619. The reversal of 1312511242618 is 8162421152131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 943487796889 + 369023445729 = 971333^2 + 607473^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1312511242619) 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, 3248790003 + ... + 3248790406.

Almost surely, 2^{1312511242618} is an apocalyptic number.

1312511242618 is a deficient number, since it is larger than the sum of its proper divisors (675748362842).

1312511242618 is a wasteful number, since it uses less digits than its factorization.

1312511242618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497580512.

The product of its digits is 23040, while the sum is 37.

Adding to 1312511242618 its reverse (8162421152131), we get a palindrome (9474932394749).

The spelling of 1312511242618 in words is "one trillion, three hundred twelve billion, five hundred eleven million, two hundred forty-two thousand, six hundred eighteen".