1339903947601 has 4 divisors (see below), whose sum is σ = 1339921769472. Its totient is φ = 1339886125732.

The previous prime is 1339903947587. The next prime is 1339903947647. The reversal of 1339903947601 is 1067493099331.

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 not a de Polignac number, because 1339903947601 - 2¹¹ = 1339903945553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1339903947691) 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, 8797681 + ... + 8948686.

It is an arithmetic number, because the mean of its divisors is an integer number (334980442368).

Almost surely, 2^{1339903947601} is an apocalyptic number.

It is an amenable number.

1339903947601 is a deficient number, since it is larger than the sum of its proper divisors (17821871).

1339903947601 is an equidigital number, since it uses as much as digits as its factorization.

1339903947601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17821870.

The product of its (nonzero) digits is 3306744, while the sum is 55.

The spelling of 1339903947601 in words is "one trillion, three hundred thirty-nine billion, nine hundred three million, nine hundred forty-seven thousand, six hundred one".