2043133021 has 2 divisors, whose sum is σ = 2043133022. Its totient is φ = 2043133020.

The previous prime is 2043133013. The next prime is 2043133031. The reversal of 2043133021 is 1203313402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1858472100 + 184660921 = 43110^2 + 13589^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043133021 - 2³ = 2043133013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2043133021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043133031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021566510 + 1021566511.

It is an arithmetic number, because the mean of its divisors is an integer number (1021566511).

Almost surely, 2^2043133021 is an apocalyptic number.

It is an amenable number.

2043133021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043133021 is an equidigital number, since it uses as much as digits as its factorization.

2043133021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2043133021 is about 45201.0289816504. The cubic root of 2043133021 is about 1268.9140739028.

Adding to 2043133021 its reverse (1203313402), we get a palindrome (3246446423).

The spelling of 2043133021 in words is "two billion, forty-three million, one hundred thirty-three thousand, twenty-one".