2133131420 has 24 divisors (see below), whose sum is σ = 5119515744. Its totient is φ = 731359296.

The previous prime is 2133131411. The next prime is 2133131443. The reversal of 2133131420 is 241313312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2133131392 and 2133131401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7618187 + ... + 7618466.

It is an arithmetic number, because the mean of its divisors is an integer number (213313156).

Almost surely, 2^2133131420 is an apocalyptic number.

2133131420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133131420 is an abundant number, since it is smaller than the sum of its proper divisors (2986384324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2133131420 is a wasteful number, since it uses less digits than its factorization.

2133131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15236669 (or 15236667 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2133131420 is about 46185.8357074980. The cubic root of 2133131420 is about 1287.2785646136.

Adding to 2133131420 its reverse (241313312), we get a palindrome (2374444732).

The spelling of 2133131420 in words is "two billion, one hundred thirty-three million, one hundred thirty-one thousand, four hundred twenty".