12331127777 has 8 divisors (see below), whose sum is σ = 12382896360. Its totient is φ = 12279415680.

The previous prime is 12331127773. The next prime is 12331127791. The reversal of 12331127777 is 77772113321.

It can be written as a sum of positive squares in 4 ways, for example, as 6944888896 + 5386238881 = 83336^2 + 73391^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12331127777 - 2² = 12331127773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331127773) 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, 455843 + ... + 482135.

It is an arithmetic number, because the mean of its divisors is an integer number (1547862045).

Almost surely, 2^12331127777 is an apocalyptic number.

It is an amenable number.

12331127777 is a deficient number, since it is larger than the sum of its proper divisors (51768583).

12331127777 is a wasteful number, since it uses less digits than its factorization.

12331127777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28243.

The product of its digits is 86436, while the sum is 41.

The spelling of 12331127777 in words is "twelve billion, three hundred thirty-one million, one hundred twenty-seven thousand, seven hundred seventy-seven".