20002101433 has 4 divisors (see below), whose sum is σ = 20002739328. Its totient is φ = 20001463540.

The previous prime is 20002101391. The next prime is 20002101443. The reversal of 20002101433 is 33410120002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20002101433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20002101443) 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, 269341 + ... + 335482.

It is an arithmetic number, because the mean of its divisors is an integer number (5000684832).

Almost surely, 2^20002101433 is an apocalyptic number.

It is an amenable number.

20002101433 is a deficient number, since it is larger than the sum of its proper divisors (637895).

20002101433 is an equidigital number, since it uses as much as digits as its factorization.

20002101433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637894.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20002101433 its reverse (33410120002), we get a palindrome (53412221435).

The spelling of 20002101433 in words is "twenty billion, two million, one hundred one thousand, four hundred thirty-three".