1143212430 has 64 divisors (see below), whose sum is σ = 2976015168. Its totient is φ = 279920640.

The previous prime is 1143212423. The next prime is 1143212459. The reversal of 1143212430 is 342123411.

It is a junction number, because it is equal to n+sod(n) for n = 1143212397 and 1143212406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6427 + ... + 48246.

It is an arithmetic number, because the mean of its divisors is an integer number (46500237).

Almost surely, 2^1143212430 is an apocalyptic number.

1143212430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143212430 is an abundant number, since it is smaller than the sum of its proper divisors (1832802738).

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

1143212430 is a wasteful number, since it uses less digits than its factorization.

1143212430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54741.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1143212430 is about 33811.4245485161. The cubic root of 1143212430 is about 1045.6242479469.

Adding to 1143212430 its reverse (342123411), we get a palindrome (1485335841).

The spelling of 1143212430 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, four hundred thirty".