1020111232 has 64 divisors (see below), whose sum is σ = 2328537600. Its totient is φ = 436068864.

The previous prime is 1020111187. The next prime is 1020111263. The reversal of 1020111232 is 2321110201.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 413619 + ... + 416077.

It is an arithmetic number, because the mean of its divisors is an integer number (36383400).

Almost surely, 2^1020111232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020111232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1164268800).

1020111232 is an abundant number, since it is smaller than the sum of its proper divisors (1308426368).

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

1020111232 is an equidigital number, since it uses as much as digits as its factorization.

1020111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2943 (or 2931 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1020111232 is about 31939.1802023784. The cubic root of 1020111232 is about 1006.6592992946.

Adding to 1020111232 its reverse (2321110201), we get a palindrome (3341221433).

The spelling of 1020111232 in words is "one billion, twenty million, one hundred eleven thousand, two hundred thirty-two".