2111112320331 has 16 divisors (see below), whose sum is σ = 3217267386368. Its totient is φ = 1206224524800.

The previous prime is 2111112320329. The next prime is 2111112320333. The reversal of 2111112320331 is 1330232111112.

It is an interprime number because it is at equal distance from previous prime (2111112320329) and next prime (2111112320333).

It is not a de Polignac number, because 2111112320331 - 2¹ = 2111112320329 is a prime.

It is a super-2 number, since 2×2111112320331² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2111112320298 and 2111112320307.

It is not an unprimeable number, because it can be changed into a prime (2111112320333) 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, 5016790 + ... + 5421291.

It is an arithmetic number, because the mean of its divisors is an integer number (201079211648).

Almost surely, 2^{2111112320331} is an apocalyptic number.

2111112320331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2111112320331 is a deficient number, since it is larger than the sum of its proper divisors (1106155066037).

2111112320331 is a wasteful number, since it uses less digits than its factorization.

2111112320331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447722.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2111112320331 its reverse (1330232111112), we get a palindrome (3441344431443).

The spelling of 2111112320331 in words is "two trillion, one hundred eleven billion, one hundred twelve million, three hundred twenty thousand, three hundred thirty-one".