1320638950207 has 4 divisors (see below), whose sum is σ = 1320686985240. Its totient is φ = 1320590915176.

The previous prime is 1320638950177. The next prime is 1320638950231. The reversal of 1320638950207 is 7020598360231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320638950207 - 2³⁵ = 1286279211839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320638956207) 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, 23976253 + ... + 24031270.

It is an arithmetic number, because the mean of its divisors is an integer number (330171746310).

Almost surely, 2^{1320638950207} is an apocalyptic number.

1320638950207 is a deficient number, since it is larger than the sum of its proper divisors (48035033).

1320638950207 is an equidigital number, since it uses as much as digits as its factorization.

1320638950207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48035032.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 1320638950207 in words is "one trillion, three hundred twenty billion, six hundred thirty-eight million, nine hundred fifty thousand, two hundred seven".