20021433010 has 16 divisors (see below), whose sum is σ = 36395398872. Its totient is φ = 7929280000.

The previous prime is 20021432971. The next prime is 20021433101. The reversal of 20021433010 is 1033412002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19410898329 + 610534681 = 139323^2 + 24709^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9910591 + ... + 9912610.

Almost surely, 2^20021433010 is an apocalyptic number.

20021433010 is a deficient number, since it is larger than the sum of its proper divisors (16373965862).

20021433010 is a wasteful number, since it uses less digits than its factorization.

20021433010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19823309.

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

Adding to 20021433010 its reverse (1033412002), we get a palindrome (21054845012).

The spelling of 20021433010 in words is "twenty billion, twenty-one million, four hundred thirty-three thousand, ten".