1313506641433 has 4 divisors (see below), whose sum is σ = 1501150447360. Its totient is φ = 1125862835508.

The previous prime is 1313506641371. The next prime is 1313506641437. The reversal of 1313506641433 is 3341466053131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1313506641433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313506641437) 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, 93821902953 + ... + 93821902966.

It is an arithmetic number, because the mean of its divisors is an integer number (375287611840).

Almost surely, 2^{1313506641433} is an apocalyptic number.

It is an amenable number.

1313506641433 is a deficient number, since it is larger than the sum of its proper divisors (187643805927).

1313506641433 is an equidigital number, since it uses as much as digits as its factorization.

1313506641433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187643805926.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 1313506641433 in words is "one trillion, three hundred thirteen billion, five hundred six million, six hundred forty-one thousand, four hundred thirty-three".