1102112120321 has 4 divisors (see below), whose sum is σ = 1106842215492. Its totient is φ = 1097382025152.

The previous prime is 1102112120287. The next prime is 1102112120341. The reversal of 1102112120321 is 1230212112011.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 767658097921 + 334454022400 = 876161^2 + 578320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1102112120321 is a prime.

It is a super-2 number, since 2×1102112120321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1102112120321.

It is not an unprimeable number, because it can be changed into a prime (1102112120341) 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, 2365047236 + ... + 2365047701.

It is an arithmetic number, because the mean of its divisors is an integer number (276710553873).

Almost surely, 2^{1102112120321} is an apocalyptic number.

It is an amenable number.

1102112120321 is a deficient number, since it is larger than the sum of its proper divisors (4730095171).

1102112120321 is an equidigital number, since it uses as much as digits as its factorization.

1102112120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4730095170.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1102112120321 its reverse (1230212112011), we get a palindrome (2332324232332).

The spelling of 1102112120321 in words is "one trillion, one hundred two billion, one hundred twelve million, one hundred twenty thousand, three hundred twenty-one".