1120042100 has 36 divisors (see below), whose sum is σ = 2489780748. Its totient is φ = 437088000.

The previous prime is 1120042087. The next prime is 1120042129. The reversal of 1120042100 is 12400211.

It can be written as a sum of positive squares in 6 ways, for example, as 286218724 + 833823376 = 16918^2 + 28876^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132491 + ... + 140690.

Almost surely, 2^1120042100 is an apocalyptic number.

1120042100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120042100 is an abundant number, since it is smaller than the sum of its proper divisors (1369738648).

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

1120042100 is a wasteful number, since it uses less digits than its factorization.

1120042100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273236 (or 273229 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1120042100 is about 33467.0300445080. The cubic root of 1120042100 is about 1038.5118323501.

Adding to 1120042100 its reverse (12400211), we get a palindrome (1132442311).

The spelling of 1120042100 in words is "one billion, one hundred twenty million, forty-two thousand, one hundred".