1143423100 has 36 divisors (see below), whose sum is σ = 2487052624. Its totient is φ = 456295680.

The previous prime is 1143423067. The next prime is 1143423103. The reversal of 1143423100 is 13243411.

It is a super-2 number, since 2×1143423100² = 2614832771227220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143423103) 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, 30097 + ... + 56503.

Almost surely, 2^1143423100 is an apocalyptic number.

1143423100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143423100 is an abundant number, since it is smaller than the sum of its proper divisors (1343629524).

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

1143423100 is a wasteful number, since it uses less digits than its factorization.

1143423100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26854 (or 26847 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143423100 is about 33814.5397721158. The cubic root of 1143423100 is about 1045.6884728523.

Adding to 1143423100 its reverse (13243411), we get a palindrome (1156666511).

The spelling of 1143423100 in words is "one billion, one hundred forty-three million, four hundred twenty-three thousand, one hundred".