73223031020311 has 8 divisors (see below), whose sum is σ = 73501716234240. Its totient is φ = 72944801548632.

The previous prime is 73223031020287. The next prime is 73223031020333. The reversal of 73223031020311 is 11302013032237.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73223031020311 is a prime.

It is a super-2 number, since 2×73223031020311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73223031020311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73223031050311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113613615 + ... + 114256288.

It is an arithmetic number, because the mean of its divisors is an integer number (9187714529280).

Almost surely, 2^{73223031020311} is an apocalyptic number.

73223031020311 is a deficient number, since it is larger than the sum of its proper divisors (278685213929).

73223031020311 is a wasteful number, since it uses less digits than its factorization.

73223031020311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227871125.

The product of its (nonzero) digits is 4536, while the sum is 28.

Adding to 73223031020311 its reverse (11302013032237), we get a palindrome (84525044052548).

The spelling of 73223031020311 in words is "seventy-three trillion, two hundred twenty-three billion, thirty-one million, twenty thousand, three hundred eleven".