20301021232 has 20 divisors (see below), whose sum is σ = 39380135760. Its totient is φ = 10138405568.

The previous prime is 20301021227. The next prime is 20301021233. The reversal of 20301021232 is 23212010302.

It is a super-2 number, since 2×20301021232² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (20301021233) 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, 742723 + ... + 769570.

It is an arithmetic number, because the mean of its divisors is an integer number (1969006788).

Almost surely, 2^20301021232 is an apocalyptic number.

It is an amenable number.

20301021232 is a deficient number, since it is larger than the sum of its proper divisors (19079114528).

20301021232 is a wasteful number, since it uses less digits than its factorization.

20301021232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513140 (or 1513134 counting only the distinct ones).

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

Adding to 20301021232 its reverse (23212010302), we get a palindrome (43513031534).

The spelling of 20301021232 in words is "twenty billion, three hundred one million, twenty-one thousand, two hundred thirty-two".