10102021033 has 4 divisors (see below), whose sum is σ = 10879099588. Its totient is φ = 9324942480.

The previous prime is 10102021009. The next prime is 10102021043. The reversal of 10102021033 is 33012020101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 888516864 + 9213504169 = 29808^2 + 95987^2 .

It is a cyclic number.

It is not a de Polignac number, because 10102021033 - 2⁵ = 10102021001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 777078541 = 10102021033 / (1 + 0 + 1 + 0 + 2 + 0 + 2 + 1 + 0 + 3 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10102021043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 388539258 + ... + 388539283.

It is an arithmetic number, because the mean of its divisors is an integer number (2719774897).

Almost surely, 2^10102021033 is an apocalyptic number.

10102021033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

10102021033 is a deficient number, since it is larger than the sum of its proper divisors (777078555).

10102021033 is an equidigital number, since it uses as much as digits as its factorization.

10102021033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777078554.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10102021033 its reverse (33012020101), we get a palindrome (43114041134).

The spelling of 10102021033 in words is "ten billion, one hundred two million, twenty-one thousand, thirty-three".