126773123012 has 12 divisors (see below), whose sum is σ = 221859980076. Its totient is φ = 63384557280.

The previous prime is 126773122969. The next prime is 126773123017. The reversal of 126773123012 is 210321377621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16792013056 + 109981109956 = 129584^2 + 331634^2 .

It is not an unprimeable number, because it can be changed into a prime (126773123017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353939 + ... + 615482.

It is an arithmetic number, because the mean of its divisors is an integer number (18488331673).

Almost surely, 2^126773123012 is an apocalyptic number.

It is an amenable number.

126773123012 is a deficient number, since it is larger than the sum of its proper divisors (95086857064).

126773123012 is a wasteful number, since it uses less digits than its factorization.

126773123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002118 (or 1002116 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 35.

The spelling of 126773123012 in words is "one hundred twenty-six billion, seven hundred seventy-three million, one hundred twenty-three thousand, twelve".