20001123232 has 12 divisors (see below), whose sum is σ = 39377211426. Its totient is φ = 10000561600.

The previous prime is 20001123229. The next prime is 20001123253. The reversal of 20001123232 is 23232110002.

It can be written as a sum of positive squares in only one way, i.e., 15000370576 + 5000752656 = 122476^2 + 70716^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312517519 + ... + 312517582.

Almost surely, 2^20001123232 is an apocalyptic number.

It is an amenable number.

20001123232 is a deficient number, since it is larger than the sum of its proper divisors (19376088194).

20001123232 is an equidigital number, since it uses as much as digits as its factorization.

20001123232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625035111 (or 625035103 counting only the distinct ones).

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

Adding to 20001123232 its reverse (23232110002), we get a palindrome (43233233234).

The spelling of 20001123232 in words is "twenty billion, one million, one hundred twenty-three thousand, two hundred thirty-two".