20433101 has 4 divisors (see below), whose sum is σ = 22004892. Its totient is φ = 18861312.

The previous prime is 20433097. The next prime is 20433137. The reversal of 20433101 is 10133402.

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 808201 + 19624900 = 899^2 + 4430^2 .

It is a cyclic number.

It is not a de Polignac number, because 20433101 - 2² = 20433097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20433181) 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, 785876 + ... + 785901.

It is an arithmetic number, because the mean of its divisors is an integer number (5501223).

Almost surely, 2^20433101 is an apocalyptic number.

It is an amenable number.

20433101 is a deficient number, since it is larger than the sum of its proper divisors (1571791).

20433101 is a wasteful number, since it uses less digits than its factorization.

20433101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571790.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 20433101 is about 4520.2987733113. The cubic root of 20433101 is about 273.3871476764.

Adding to 20433101 its reverse (10133402), we get a palindrome (30566503).

The spelling of 20433101 in words is "twenty million, four hundred thirty-three thousand, one hundred one".