1311445100243 has 16 divisors (see below), whose sum is σ = 1357683269376. Its totient is φ = 1265456286720.

The previous prime is 1311445100227. The next prime is 1311445100249. The reversal of 1311445100243 is 3420015441131.

It is not a de Polignac number, because 1311445100243 - 2⁴ = 1311445100227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311445100249) 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, 23233871 + ... + 23290247.

It is an arithmetic number, because the mean of its divisors is an integer number (84855204336).

Almost surely, 2^{1311445100243} is an apocalyptic number.

1311445100243 is a deficient number, since it is larger than the sum of its proper divisors (46238169133).

1311445100243 is a wasteful number, since it uses less digits than its factorization.

1311445100243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58574.

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 1311445100243 in words is "one trillion, three hundred eleven billion, four hundred forty-five million, one hundred thousand, two hundred forty-three".