12005078623 has 2 divisors, whose sum is σ = 12005078624. Its totient is φ = 12005078622.

The previous prime is 12005078621. The next prime is 12005078627. The reversal of 12005078623 is 32687050021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12005078623 - 2¹ = 12005078621 is a prime.

It is a super-2 number, since 2×12005078623² (a number of 21 digits) contains 22 as substring.

Together with 12005078621, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12005078621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6002539311 + 6002539312.

It is an arithmetic number, because the mean of its divisors is an integer number (6002539312).

Almost surely, 2^12005078623 is an apocalyptic number.

12005078623 is a deficient number, since it is larger than the sum of its proper divisors (1).

12005078623 is an equidigital number, since it uses as much as digits as its factorization.

12005078623 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 12005078623 in words is "twelve billion, five million, seventy-eight thousand, six hundred twenty-three".