11949432223 has 4 divisors (see below), whose sum is σ = 12361481640. Its totient is φ = 11537382808.

The previous prime is 11949432203. The next prime is 11949432227. The reversal of 11949432223 is 32223494911.

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: 32223494911 = 71 ⋅453852041.

It is a cyclic number.

It is not a de Polignac number, because 11949432223 - 2¹⁷ = 11949301151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11949432227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206024665 + ... + 206024722.

It is an arithmetic number, because the mean of its divisors is an integer number (3090370410).

Almost surely, 2^11949432223 is an apocalyptic number.

11949432223 is a deficient number, since it is larger than the sum of its proper divisors (412049417).

11949432223 is an equidigital number, since it uses as much as digits as its factorization.

11949432223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412049416.

The product of its digits is 93312, while the sum is 40.

The spelling of 11949432223 in words is "eleven billion, nine hundred forty-nine million, four hundred thirty-two thousand, two hundred twenty-three".