2111132120321 has 16 divisors (see below), whose sum is σ = 2564853452160. Its totient is φ = 1697329468800.

The previous prime is 2111132120299. The next prime is 2111132120353. The reversal of 2111132120321 is 1230212311112.

It is not a de Polignac number, because 2111132120321 - 2¹⁸ = 2111131858177 is a prime.

It is a super-2 number, since 2×2111132120321² (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 = 2111132120293 and 2111132120302.

It is not an unprimeable number, because it can be changed into a prime (2111132120021) 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, 78566636 + ... + 78593501.

It is an arithmetic number, because the mean of its divisors is an integer number (160303340760).

Almost surely, 2^{2111132120321} is an apocalyptic number.

It is an amenable number.

2111132120321 is a deficient number, since it is larger than the sum of its proper divisors (453721331839).

2111132120321 is a wasteful number, since it uses less digits than its factorization.

2111132120321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157160264.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2111132120321 its reverse (1230212311112), we get a palindrome (3341344431433).

The spelling of 2111132120321 in words is "two trillion, one hundred eleven billion, one hundred thirty-two million, one hundred twenty thousand, three hundred twenty-one".