73212023011 has 8 divisors (see below), whose sum is σ = 77468774400. Its totient is φ = 68995620360.

The previous prime is 73212023009. The next prime is 73212023023. The reversal of 73212023011 is 11032021237.

It is a happy number.

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

It is not a de Polignac number, because 73212023011 - 2¹ = 73212023009 is a prime.

It is a super-2 number, since 2×73212023011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73212023711) 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 7 ways as a sum of consecutive naturals, for example, 10083451 + ... + 10090708.

It is an arithmetic number, because the mean of its divisors is an integer number (9683596800).

Almost surely, 2^73212023011 is an apocalyptic number.

73212023011 is a deficient number, since it is larger than the sum of its proper divisors (4256751389).

73212023011 is a wasteful number, since it uses less digits than its factorization.

73212023011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20174369.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 73212023011 its reverse (11032021237), we get a palindrome (84244044248).

The spelling of 73212023011 in words is "seventy-three billion, two hundred twelve million, twenty-three thousand, eleven".