1323122100019 has 4 divisors (see below), whose sum is σ = 1326576727296. Its totient is φ = 1319667472744.

The previous prime is 1323122099947. The next prime is 1323122100059. The reversal of 1323122100019 is 9100012213231.

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 1323122100019 - 2²⁵ = 1323088545587 is a prime.

It is a super-2 number, since 2×1323122100019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1323122099966 and 1323122100002.

It is not an unprimeable number, because it can be changed into a prime (1323122100059) 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, 1727313064 + ... + 1727313829.

It is an arithmetic number, because the mean of its divisors is an integer number (331644181824).

Almost surely, 2^{1323122100019} is an apocalyptic number.

1323122100019 is a deficient number, since it is larger than the sum of its proper divisors (3454627277).

1323122100019 is an equidigital number, since it uses as much as digits as its factorization.

1323122100019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3454627276.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 1323122100019 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-two million, one hundred thousand, nineteen".