12199034431 has 4 divisors (see below), whose sum is σ = 12399018664. Its totient is φ = 11999050200.

The previous prime is 12199034399. The next prime is 12199034461. The reversal of 12199034431 is 13443099121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13443099121 = 63617 ⋅211313.

It is a cyclic number.

It is not a de Polignac number, because 12199034431 - 2⁵ = 12199034399 is a prime.

It is a super-2 number, since 2×12199034431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12199034461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99992025 + ... + 99992146.

It is an arithmetic number, because the mean of its divisors is an integer number (3099754666).

Almost surely, 2^12199034431 is an apocalyptic number.

12199034431 is a deficient number, since it is larger than the sum of its proper divisors (199984233).

12199034431 is an equidigital number, since it uses as much as digits as its factorization.

12199034431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199984232.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 12199034431 in words is "twelve billion, one hundred ninety-nine million, thirty-four thousand, four hundred thirty-one".