1247212733223 has 16 divisors (see below), whose sum is σ = 1679746608000. Its totient is φ = 823080256800.

The previous prime is 1247212733209. The next prime is 1247212733243. The reversal of 1247212733223 is 3223372127421.

It is a de Polignac number, because none of the positive numbers 2^k-1247212733223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1247212733243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141368 + ... + 1948626.

It is an arithmetic number, because the mean of its divisors is an integer number (104984163000).

Almost surely, 2^{1247212733223} is an apocalyptic number.

1247212733223 is a deficient number, since it is larger than the sum of its proper divisors (432533874777).

1247212733223 is a wasteful number, since it uses less digits than its factorization.

1247212733223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812462.

The product of its digits is 169344, while the sum is 39.

The spelling of 1247212733223 in words is "one trillion, two hundred forty-seven billion, two hundred twelve million, seven hundred thirty-three thousand, two hundred twenty-three".