2113220331 has 24 divisors (see below), whose sum is σ = 3146629824. Its totient is φ = 1365621120.

The previous prime is 2113220321. The next prime is 2113220359. The reversal of 2113220331 is 1330223112.

2113220331 is a `hidden beast` number, since 2 + 11 + 322 + 0 + 331 = 666.

It is not a de Polignac number, because 2113220331 - 2¹³ = 2113212139 is a prime.

It is a super-2 number, since 2×2113220331² = 8931400334703499122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2113220321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78535 + ... + 101951.

It is an arithmetic number, because the mean of its divisors is an integer number (131109576).

Almost surely, 2^2113220331 is an apocalyptic number.

2113220331 is a deficient number, since it is larger than the sum of its proper divisors (1033409493).

2113220331 is a wasteful number, since it uses less digits than its factorization.

2113220331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23731 (or 23728 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2113220331 is about 45969.7762774630. The cubic root of 2113220331 is about 1283.2607963874.

Adding to 2113220331 its reverse (1330223112), we get a palindrome (3443443443).

The spelling of 2113220331 in words is "two billion, one hundred thirteen million, two hundred twenty thousand, three hundred thirty-one".