1220112112323 has 16 divisors (see below), whose sum is σ = 1751990934176. Its totient is φ = 750823188480.

The previous prime is 1220112112309. The next prime is 1220112112361. The reversal of 1220112112323 is 3232112110221.

It is not a de Polignac number, because 1220112112323 - 2²² = 1220107918019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220112112323.

It is not an unprimeable number, because it can be changed into a prime (1220112112363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1848261 + ... + 2419977.

It is an arithmetic number, because the mean of its divisors is an integer number (109499433386).

Almost surely, 2^{1220112112323} is an apocalyptic number.

1220112112323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1220112112323 is a deficient number, since it is larger than the sum of its proper divisors (531878821853).

1220112112323 is a wasteful number, since it uses less digits than its factorization.

1220112112323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626454.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1220112112323 its reverse (3232112110221), we get a palindrome (4452224222544).

The spelling of 1220112112323 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred twelve thousand, three hundred twenty-three".