12381903077 has 2 divisors, whose sum is σ = 12381903078. Its totient is φ = 12381903076.

The previous prime is 12381902989. The next prime is 12381903101. The reversal of 12381903077 is 77030918321.

It is a Cunningham number, because it is equal to 111274²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12381903076 + 1 = 111274^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 12381903077 - 2⁸ = 12381902821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12381993077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6190951538 + 6190951539.

It is an arithmetic number, because the mean of its divisors is an integer number (6190951539).

Almost surely, 2^12381903077 is an apocalyptic number.

It is an amenable number.

12381903077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12381903077 is an equidigital number, since it uses as much as digits as its factorization.

12381903077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63504, while the sum is 41.

The spelling of 12381903077 in words is "twelve billion, three hundred eighty-one million, nine hundred three thousand, seventy-seven".