1143212099 has 2 divisors, whose sum is σ = 1143212100. Its totient is φ = 1143212098.

The previous prime is 1143212087. The next prime is 1143212131. The reversal of 1143212099 is 9902123411.

It is an a-pointer prime, because the next prime (1143212131) can be obtained adding 1143212099 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143212099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1143212069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571606049 + 571606050.

It is an arithmetic number, because the mean of its divisors is an integer number (571606050).

Almost surely, 2^1143212099 is an apocalyptic number.

1143212099 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143212099 is an equidigital number, since it uses as much as digits as its factorization.

1143212099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1143212099 is about 33811.4196537205. The cubic root of 1143212099 is about 1045.6241470320.

The spelling of 1143212099 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, ninety-nine".