20201112330 has 128 divisors (see below), whose sum is σ = 57284333568. Its totient is φ = 4463327232.

The previous prime is 20201112329. The next prime is 20201112331. The reversal of 20201112330 is 3321110202.

It is an interprime number because it is at equal distance from previous prime (20201112329) and next prime (20201112331).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20201112331) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 864379 + ... + 887441.

It is an arithmetic number, because the mean of its divisors is an integer number (447533856).

Almost surely, 2^20201112330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201112330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28642166784).

20201112330 is an abundant number, since it is smaller than the sum of its proper divisors (37083221238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20201112330 is a wasteful number, since it uses less digits than its factorization.

20201112330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23220.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20201112330 its reverse (3321110202), we get a palindrome (23522222532).

The spelling of 20201112330 in words is "twenty billion, two hundred one million, one hundred twelve thousand, three hundred thirty".