23333222981 has 2 divisors, whose sum is σ = 23333222982. Its totient is φ = 23333222980.

The previous prime is 23333222963. The next prime is 23333223019. The reversal of 23333222981 is 18922233332.

It is an a-pointer prime, because the next prime (23333223019) can be obtained adding 23333222981 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14584426756 + 8748796225 = 120766^2 + 93535^2 .

It is a cyclic number.

It is not a de Polignac number, because 23333222981 - 2²² = 23329028677 is a prime.

It is a super-2 number, since 2×23333222981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23333222921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11666611490 + 11666611491.

It is an arithmetic number, because the mean of its divisors is an integer number (11666611491).

Almost surely, 2^23333222981 is an apocalyptic number.

It is an amenable number.

23333222981 is a deficient number, since it is larger than the sum of its proper divisors (1).

23333222981 is an equidigital number, since it uses as much as digits as its factorization.

23333222981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 38.

The spelling of 23333222981 in words is "twenty-three billion, three hundred thirty-three million, two hundred twenty-two thousand, nine hundred eighty-one".