233223141421 has 2 divisors, whose sum is σ = 233223141422. Its totient is φ = 233223141420.

The previous prime is 233223141379. The next prime is 233223141479. The reversal of 233223141421 is 124141322332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157521672100 + 75701469321 = 396890^2 + 275139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233223141421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233223141421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (233223141721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116611570710 + 116611570711.

It is an arithmetic number, because the mean of its divisors is an integer number (116611570711).

Almost surely, 2^233223141421 is an apocalyptic number.

It is an amenable number.

233223141421 is a deficient number, since it is larger than the sum of its proper divisors (1).

233223141421 is an equidigital number, since it uses as much as digits as its factorization.

233223141421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

Adding to 233223141421 its reverse (124141322332), we get a palindrome (357364463753).

The spelling of 233223141421 in words is "two hundred thirty-three billion, two hundred twenty-three million, one hundred forty-one thousand, four hundred twenty-one".