33023302421 has 2 divisors, whose sum is σ = 33023302422. Its totient is φ = 33023302420.

The previous prime is 33023302409. The next prime is 33023302423. The reversal of 33023302421 is 12420332033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23935493521 + 9087808900 = 154711^2 + 95330^2 .

It is a cyclic number.

It is not a de Polignac number, because 33023302421 - 2²² = 33019108117 is a prime.

It is a super-2 number, since 2×33023302421² (a number of 22 digits) contains 22 as substring.

Together with 33023302423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33023302423) 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 as a sum of consecutive naturals, namely, 16511651210 + 16511651211.

It is an arithmetic number, because the mean of its divisors is an integer number (16511651211).

Almost surely, 2^33023302421 is an apocalyptic number.

It is an amenable number.

33023302421 is a deficient number, since it is larger than the sum of its proper divisors (1).

33023302421 is an equidigital number, since it uses as much as digits as its factorization.

33023302421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 33023302421 its reverse (12420332033), we get a palindrome (45443634454).

The spelling of 33023302421 in words is "thirty-three billion, twenty-three million, three hundred two thousand, four hundred twenty-one".