12145023377 has 2 divisors, whose sum is σ = 12145023378. Its totient is φ = 12145023376.

The previous prime is 12145023313. The next prime is 12145023427. The reversal of 12145023377 is 77332054121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12144921616 + 101761 = 110204^2 + 319^2 .

It is a cyclic number.

It is not a de Polignac number, because 12145023377 - 2⁶ = 12145023313 is a prime.

It is not a weakly prime, because it can be changed into another prime (12145023277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6072511688 + 6072511689.

It is an arithmetic number, because the mean of its divisors is an integer number (6072511689).

Almost surely, 2^12145023377 is an apocalyptic number.

It is an amenable number.

12145023377 is a deficient number, since it is larger than the sum of its proper divisors (1).

12145023377 is an equidigital number, since it uses as much as digits as its factorization.

12145023377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 35.

Adding to 12145023377 its reverse (77332054121), we get a palindrome (89477077498).

The spelling of 12145023377 in words is "twelve billion, one hundred forty-five million, twenty-three thousand, three hundred seventy-seven".