11320121999999 has 4 divisors (see below), whose sum is σ = 11320153997064. Its totient is φ = 11320090002936.

The previous prime is 11320121999971. The next prime is 11320122000023. The reversal of 11320121999999 is 99999912102311.

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 11320121999999 - 2²⁸ = 11319853564543 is a prime.

It is a super-2 number, since 2×11320121999999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320121989999) 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, 15461852 + ... + 16177425.

It is an arithmetic number, because the mean of its divisors is an integer number (2830038499266).

Almost surely, 2^{11320121999999} is an apocalyptic number.

11320121999999 is a deficient number, since it is larger than the sum of its proper divisors (31997065).

11320121999999 is an equidigital number, since it uses as much as digits as its factorization.

11320121999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31997064.

The product of its (nonzero) digits is 6377292, while the sum is 65.

The spelling of 11320121999999 in words is "eleven trillion, three hundred twenty billion, one hundred twenty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".