2133133731 has 32 divisors (see below), whose sum is σ = 3300710400. Its totient is φ = 1360164960.

The previous prime is 2133133721. The next prime is 2133133733. The reversal of 2133133731 is 1373313312.

2133133731 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2133133731 - 2⁵ = 2133133699 is a prime.

It is a super-2 number, since 2×2133133731² = 9100519028659960722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2133133695 and 2133133704.

It is not an unprimeable number, because it can be changed into a prime (2133133733) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40846 + ... + 77036.

It is an arithmetic number, because the mean of its divisors is an integer number (103147200).

Almost surely, 2^2133133731 is an apocalyptic number.

2133133731 is a deficient number, since it is larger than the sum of its proper divisors (1167576669).

2133133731 is a wasteful number, since it uses less digits than its factorization.

2133133731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36296 (or 36290 counting only the distinct ones).

The product of its digits is 3402, while the sum is 27.

The square root of 2133133731 is about 46185.8607259841. The cubic root of 2133133731 is about 1287.2790294857.

The spelling of 2133133731 in words is "two billion, one hundred thirty-three million, one hundred thirty-three thousand, seven hundred thirty-one".