1101142432 has 72 divisors (see below), whose sum is σ = 2368715076. Its totient is φ = 500880384.

The previous prime is 1101142403. The next prime is 1101142433. The reversal of 1101142432 is 2342411011.

It can be written as a sum of positive squares in 2 ways, for example, as 1076102416 + 25040016 = 32804^2 + 5004^2 .

It is not an unprimeable number, because it can be changed into a prime (1101142433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7921819 + ... + 7921957.

Almost surely, 2^1101142432 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 1101142432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1184357538).

1101142432 is an abundant number, since it is smaller than the sum of its proper divisors (1267572644).

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

1101142432 is a wasteful number, since it uses less digits than its factorization.

1101142432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1101142432 is about 33183.4662445019. The cubic root of 1101142432 is about 1032.6373584276.

Adding to 1101142432 its reverse (2342411011), we get a palindrome (3443553443).

The spelling of 1101142432 in words is "one billion, one hundred one million, one hundred forty-two thousand, four hundred thirty-two".