1143420100 has 18 divisors (see below), whose sum is σ = 2481221834. Its totient is φ = 457368000.

The previous prime is 1143420071. The next prime is 1143420127. The reversal of 1143420100 is 10243411.

It can be written as a sum of positive squares in 3 ways, for example, as 379782144 + 763637956 = 19488^2 + 27634^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5717001 + ... + 5717200.

Almost surely, 2^1143420100 is an apocalyptic number.

1143420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143420100 is an abundant number, since it is smaller than the sum of its proper divisors (1337801734).

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

1143420100 is a wasteful number, since it uses less digits than its factorization.

1143420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11434215 (or 11434208 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1143420100 is about 33814.4954124707. The cubic root of 1143420100 is about 1045.6875583270.

Adding to 1143420100 its reverse (10243411), we get a palindrome (1153663511).

The spelling of 1143420100 in words is "one billion, one hundred forty-three million, four hundred twenty thousand, one hundred".