1223122031329 has 16 divisors (see below), whose sum is σ = 1394395453440. Its totient is φ = 1062962404560.

The previous prime is 1223122031291. The next prime is 1223122031387. The reversal of 1223122031329 is 9231302213221.

It is not a de Polignac number, because 1223122031329 - 2¹⁵ = 1223121998561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223122031329.

It is not an unprimeable number, because it can be changed into a prime (1223122031029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27487149 + ... + 27531610.

It is an arithmetic number, because the mean of its divisors is an integer number (87149715840).

Almost surely, 2^{1223122031329} is an apocalyptic number.

It is an amenable number.

1223122031329 is a deficient number, since it is larger than the sum of its proper divisors (171273422111).

1223122031329 is a wasteful number, since it uses less digits than its factorization.

1223122031329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55018860.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 1223122031329 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-two million, thirty-one thousand, three hundred twenty-nine".