2133311331 has 12 divisors (see below), whose sum is σ = 2923374552. Its totient is φ = 1383766848.

The previous prime is 2133311309. The next prime is 2133311363. The reversal of 2133311331 is 1331133312.

It is a de Polignac number, because none of the positive numbers 2^k-2133311331 is a prime.

It is a super-2 number, since 2×2133311331² = 9102034469945983122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2133311298 and 2133311307.

It is not an unprimeable number, because it can be changed into a prime (2133311381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255610 + ... + 263823.

It is an arithmetic number, because the mean of its divisors is an integer number (243614546).

Almost surely, 2^2133311331 is an apocalyptic number.

2133311331 is a deficient number, since it is larger than the sum of its proper divisors (790063221).

2133311331 is an equidigital number, since it uses as much as digits as its factorization.

2133311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519510 (or 519473 counting only the distinct ones).

The product of its digits is 486, while the sum is 21.

The square root of 2133311331 is about 46187.7833523108. The cubic root of 2133311331 is about 1287.3147538299.

Adding to 2133311331 its reverse (1331133312), we get a palindrome (3464444643).

The spelling of 2133311331 in words is "two billion, one hundred thirty-three million, three hundred eleven thousand, three hundred thirty-one".