1232126899 has 16 divisors (see below), whose sum is σ = 1315950336. Its totient is φ = 1151539200.

The previous prime is 1232126893. The next prime is 1232126921. The reversal of 1232126899 is 9986212321.

It is a cyclic number.

It is not a de Polignac number, because 1232126899 - 2⁷ = 1232126771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1232126893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153219 + ... + 161059.

It is an arithmetic number, because the mean of its divisors is an integer number (82246896).

Almost surely, 2^1232126899 is an apocalyptic number.

1232126899 is a deficient number, since it is larger than the sum of its proper divisors (83823437).

1232126899 is a wasteful number, since it uses less digits than its factorization.

1232126899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8046.

The product of its digits is 93312, while the sum is 43.

The square root of 1232126899 is about 35101.6651884209. The cubic root of 1232126899 is about 1072.0584878773.

The spelling of 1232126899 in words is "one billion, two hundred thirty-two million, one hundred twenty-six thousand, eight hundred ninety-nine".