12440123383 has 2 divisors, whose sum is σ = 12440123384. Its totient is φ = 12440123382.

The previous prime is 12440123357. The next prime is 12440123411. The reversal of 12440123383 is 38332104421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12440123383 - 2⁵ = 12440123351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12440120383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220061691 + 6220061692.

It is an arithmetic number, because the mean of its divisors is an integer number (6220061692).

Almost surely, 2^12440123383 is an apocalyptic number.

12440123383 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440123383 is an equidigital number, since it uses as much as digits as its factorization.

12440123383 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 12440123383 in words is "twelve billion, four hundred forty million, one hundred twenty-three thousand, three hundred eighty-three".