1233424203421 has 2 divisors, whose sum is σ = 1233424203422. Its totient is φ = 1233424203420.

The previous prime is 1233424203301. The next prime is 1233424203481. The reversal of 1233424203421 is 1243024243321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 855708252025 + 377715951396 = 925045^2 + 614586^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233424203421 - 2⁷ = 1233424203293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233424203481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616712101710 + 616712101711.

It is an arithmetic number, because the mean of its divisors is an integer number (616712101711).

Almost surely, 2^{1233424203421} is an apocalyptic number.

It is an amenable number.

1233424203421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233424203421 is an equidigital number, since it uses as much as digits as its factorization.

1233424203421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1233424203421 its reverse (1243024243321), we get a palindrome (2476448446742).

The spelling of 1233424203421 in words is "one trillion, two hundred thirty-three billion, four hundred twenty-four million, two hundred three thousand, four hundred twenty-one".