2021132433 has 16 divisors (see below), whose sum is σ = 2778878592. Its totient is φ = 1305840000.

The previous prime is 2021132411. The next prime is 2021132461. The reversal of 2021132433 is 3342311202.

It is not a de Polignac number, because 2021132433 - 2⁵ = 2021132401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2021132473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35838 + ... + 72983.

It is an arithmetic number, because the mean of its divisors is an integer number (173679912).

Almost surely, 2^2021132433 is an apocalyptic number.

It is an amenable number.

2021132433 is a deficient number, since it is larger than the sum of its proper divisors (757746159).

2021132433 is a wasteful number, since it uses less digits than its factorization.

2021132433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109016.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 2021132433 is about 44957.0064950948. The cubic root of 2021132433 is about 1264.3430445506.

Adding to 2021132433 its reverse (3342311202), we get a palindrome (5363443635).

The spelling of 2021132433 in words is "two billion, twenty-one million, one hundred thirty-two thousand, four hundred thirty-three".