1312542341551 has 16 divisors (see below), whose sum is σ = 1547860104000. Its totient is φ = 1112395409664.

The previous prime is 1312542341503. The next prime is 1312542341557. The reversal of 1312542341551 is 1551432452131.

It is not a de Polignac number, because 1312542341551 - 2¹¹ = 1312542339503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312542341551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312542341557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21467530 + ... + 21528583.

It is an arithmetic number, because the mean of its divisors is an integer number (96741256500).

Almost surely, 2^{1312542341551} is an apocalyptic number.

1312542341551 is a deficient number, since it is larger than the sum of its proper divisors (235317762449).

1312542341551 is an frugal number, since it uses more digits than its factorization.

1312542341551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42996223 (or 42996209 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

Adding to 1312542341551 its reverse (1551432452131), we get a palindrome (2863974793682).

The spelling of 1312542341551 in words is "one trillion, three hundred twelve billion, five hundred forty-two million, three hundred forty-one thousand, five hundred fifty-one".