1320020122999 has 4 divisors (see below), whose sum is σ = 1336729238560. Its totient is φ = 1303311007440.

The previous prime is 1320020122997. The next prime is 1320020123039. The reversal of 1320020122999 is 9992210200231.

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 1320020122999 - 2¹ = 1320020122997 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 (1320020122991) 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, 8354557662 + ... + 8354557819.

It is an arithmetic number, because the mean of its divisors is an integer number (334182309640).

Almost surely, 2^{1320020122999} is an apocalyptic number.

1320020122999 is a deficient number, since it is larger than the sum of its proper divisors (16709115561).

1320020122999 is an equidigital number, since it uses as much as digits as its factorization.

1320020122999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16709115560.

The product of its (nonzero) digits is 34992, while the sum is 40.

The spelling of 1320020122999 in words is "one trillion, three hundred twenty billion, twenty million, one hundred twenty-two thousand, nine hundred ninety-nine".