1273823123044 has 24 divisors (see below), whose sum is σ = 2271401786808. Its totient is φ = 624852783360.

The previous prime is 1273823123039. The next prime is 1273823123063. The reversal of 1273823123044 is 4403213283721.

It can be written as a sum of positive squares in 4 ways, for example, as 584444960100 + 689378162944 = 764490^2 + 830288^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1273823122988 and 1273823123006.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3123814 + ... + 3507970.

It is an arithmetic number, because the mean of its divisors is an integer number (94641741117).

Almost surely, 2^{1273823123044} is an apocalyptic number.

It is an amenable number.

1273823123044 is a deficient number, since it is larger than the sum of its proper divisors (997578663764).

1273823123044 is a wasteful number, since it uses less digits than its factorization.

1273823123044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399855 (or 399853 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 1273823123044 in words is "one trillion, two hundred seventy-three billion, eight hundred twenty-three million, one hundred twenty-three thousand, forty-four".