13223156135044 has 12 divisors (see below), whose sum is σ = 23140704759004. Its totient is φ = 6611526203904.

The previous prime is 13223156135027. The next prime is 13223156135087. The reversal of 13223156135044 is 44053165132231.

It can be written as a sum of positive squares in 2 ways, for example, as 1740288640000 + 11482867495044 = 1319200^2 + 3388638^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13223156134988 and 13223156135006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12389397 + ... + 13414300.

Almost surely, 2^{13223156135044} is an apocalyptic number.

It is an amenable number.

13223156135044 is a deficient number, since it is larger than the sum of its proper divisors (9917548623960).

13223156135044 is a wasteful number, since it uses less digits than its factorization.

13223156135044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25931814 (or 25931812 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 13223156135044 in words is "thirteen trillion, two hundred twenty-three billion, one hundred fifty-six million, one hundred thirty-five thousand, forty-four".