12400232019 has 8 divisors (see below), whose sum is σ = 18895591680. Its totient is φ = 7085846856.

The previous prime is 12400231997. The next prime is 12400232057. The reversal of 12400232019 is 91023200421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12400232019 - 2⁹ = 12400231507 is a prime.

It is a super-2 number, since 2×12400232019² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12400232019.

It is not an unprimeable number, because it can be changed into a prime (12400232069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295243599 + ... + 295243640.

It is an arithmetic number, because the mean of its divisors is an integer number (2361948960).

Almost surely, 2^12400232019 is an apocalyptic number.

12400232019 is a deficient number, since it is larger than the sum of its proper divisors (6495359661).

12400232019 is an equidigital number, since it uses as much as digits as its factorization.

12400232019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590487249.

The product of its (nonzero) digits is 864, while the sum is 24.

The spelling of 12400232019 in words is "twelve billion, four hundred million, two hundred thirty-two thousand, nineteen".