12000040123 has 8 divisors (see below), whose sum is σ = 12416680800. Its totient is φ = 11583589248.

The previous prime is 12000040093. The next prime is 12000040153. The reversal of 12000040123 is 32104000021.

It is an interprime number because it is at equal distance from previous prime (12000040093) and next prime (12000040153).

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

It is not a de Polignac number, because 12000040123 - 2¹³ = 12000031931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12000040153) 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, 87763 + ... + 178051.

It is an arithmetic number, because the mean of its divisors is an integer number (1552085100).

Almost surely, 2^12000040123 is an apocalyptic number.

12000040123 is a deficient number, since it is larger than the sum of its proper divisors (416640677).

12000040123 is an equidigital number, since it uses as much as digits as its factorization.

12000040123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94901.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12000040123 its reverse (32104000021), we get a palindrome (44104040144).

The spelling of 12000040123 in words is "twelve billion, forty thousand, one hundred twenty-three".