20020111232 has 32 divisors (see below), whose sum is σ = 43509619800. Its totient is φ = 9100049920.

The previous prime is 20020111231. The next prime is 20020111247. The reversal of 20020111232 is 23211102002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020111231) 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, 7108007 + ... + 7110822.

Almost surely, 2^20020111232 is an apocalyptic number.

20020111232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20020111232 is an abundant number, since it is smaller than the sum of its proper divisors (23489508568).

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

20020111232 is a wasteful number, since it uses less digits than its factorization.

20020111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14218854 (or 14218842 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20020111232 its reverse (23211102002), we get a palindrome (43231213234).

The spelling of 20020111232 in words is "twenty billion, twenty million, one hundred eleven thousand, two hundred thirty-two".