23000311221 has 16 divisors (see below), whose sum is σ = 31659142464. Its totient is φ = 14841805824.

The previous prime is 23000311219. The next prime is 23000311277. The reversal of 23000311221 is 12211300032.

It is not a de Polignac number, because 23000311221 - 2¹ = 23000311219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23000311221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000318221) 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, 515391 + ... + 558236.

It is an arithmetic number, because the mean of its divisors is an integer number (1978696404).

Almost surely, 2^23000311221 is an apocalyptic number.

It is an amenable number.

23000311221 is a deficient number, since it is larger than the sum of its proper divisors (8658831243).

23000311221 is a wasteful number, since it uses less digits than its factorization.

23000311221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073860.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23000311221 its reverse (12211300032), we get a palindrome (35211611253).

The spelling of 23000311221 in words is "twenty-three billion, three hundred eleven thousand, two hundred twenty-one".