1232142011 has 2 divisors, whose sum is σ = 1232142012. Its totient is φ = 1232142010.

The previous prime is 1232141959. The next prime is 1232142013. The reversal of 1232142011 is 1102412321.

It is a strong prime.

It is an emirp because it is prime and its reverse (1102412321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232142011 is a prime.

It is a super-2 number, since 2×1232142011² = 3036347870542248242, which contains 22 as substring.

Together with 1232142013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1232142013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616071005 + 616071006.

It is an arithmetic number, because the mean of its divisors is an integer number (616071006).

Almost surely, 2^1232142011 is an apocalyptic number.

1232142011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232142011 is an equidigital number, since it uses as much as digits as its factorization.

1232142011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1232142011 is about 35101.8804482039. The cubic root of 1232142011 is about 1072.0628707813.

Adding to 1232142011 its reverse (1102412321), we get a palindrome (2334554332).

The spelling of 1232142011 in words is "one billion, two hundred thirty-two million, one hundred forty-two thousand, eleven".