1021021100433 has 12 divisors (see below), whose sum is σ = 1493476716160. Its totient is φ = 672064521336.

The previous prime is 1021021100413. The next prime is 1021021100573. The reversal of 1021021100433 is 3340011201201.

1021021100433 is a `hidden beast` number, since 1 + 0 + 21 + 0 + 211 + 0 + 0 + 433 = 666.

It is not a de Polignac number, because 1021021100433 - 2⁵ = 1021021100401 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1021021100413) 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, 718016941 + ... + 718018362.

Almost surely, 2^{1021021100433} is an apocalyptic number.

It is an amenable number.

1021021100433 is a deficient number, since it is larger than the sum of its proper divisors (472455615727).

1021021100433 is a wasteful number, since it uses less digits than its factorization.

1021021100433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436035388 (or 1436035385 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1021021100433 its reverse (3340011201201), we get a palindrome (4361032301634).

The spelling of 1021021100433 in words is "one trillion, twenty-one billion, twenty-one million, one hundred thousand, four hundred thirty-three".