1101020032 has 64 divisors (see below), whose sum is σ = 2593288800. Its totient is φ = 455583744.

The previous prime is 1101020021. The next prime is 1101020033. The reversal of 1101020032 is 2300201011.

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

It is a super-2 number, since 2×1101020032² = 2424490221730562048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101020033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4798 + ... + 47170.

Almost surely, 2^1101020032 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 1101020032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296644400).

1101020032 is an abundant number, since it is smaller than the sum of its proper divisors (1492268768).

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

1101020032 is an equidigital number, since it uses as much as digits as its factorization.

1101020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42423 (or 42411 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1101020032 is about 33181.6219012875. The cubic root of 1101020032 is about 1032.5990952891.

Adding to 1101020032 its reverse (2300201011), we get a palindrome (3401221043).

The spelling of 1101020032 in words is "one billion, one hundred one million, twenty thousand, thirty-two".