1320022115123 has 4 divisors (see below), whose sum is σ = 1321407238968. Its totient is φ = 1318636991280.

The previous prime is 1320022115117. The next prime is 1320022115129. The reversal of 1320022115123 is 3215112200231.

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

It is an interprime number because it is at equal distance from previous prime (1320022115117) and next prime (1320022115129).

It is a cyclic number.

It is not a de Polignac number, because 1320022115123 - 2⁴ = 1320022115107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320022115129) 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, 692560493 + ... + 692562398.

It is an arithmetic number, because the mean of its divisors is an integer number (330351809742).

Almost surely, 2^{1320022115123} is an apocalyptic number.

1320022115123 is a deficient number, since it is larger than the sum of its proper divisors (1385123845).

1320022115123 is an equidigital number, since it uses as much as digits as its factorization.

1320022115123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385123844.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 1320022115123 its reverse (3215112200231), we get a palindrome (4535134315354).

The spelling of 1320022115123 in words is "one trillion, three hundred twenty billion, twenty-two million, one hundred fifteen thousand, one hundred twenty-three".