20011323232 has 12 divisors (see below), whose sum is σ = 39397292676. Its totient is φ = 10005661600.

The previous prime is 20011323229. The next prime is 20011323251. The reversal of 20011323232 is 23232311002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312676894 + ... + 312676957.

It is an arithmetic number, because the mean of its divisors is an integer number (3283107723).

Almost surely, 2^20011323232 is an apocalyptic number.

It is an amenable number.

20011323232 is a deficient number, since it is larger than the sum of its proper divisors (19385969444).

20011323232 is an equidigital number, since it uses as much as digits as its factorization.

20011323232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625353861 (or 625353853 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20011323232 its reverse (23232311002), we get a palindrome (43243634234).

The spelling of 20011323232 in words is "twenty billion, eleven million, three hundred twenty-three thousand, two hundred thirty-two".