24345022421 has 2 divisors, whose sum is σ = 24345022422. Its totient is φ = 24345022420.

The previous prime is 24345022417. The next prime is 24345022433. The reversal of 24345022421 is 12422054342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23130151396 + 1214871025 = 152086^2 + 34855^2 .

It is a cyclic number.

It is not a de Polignac number, because 24345022421 - 2² = 24345022417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24345022321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12172511210 + 12172511211.

It is an arithmetic number, because the mean of its divisors is an integer number (12172511211).

Almost surely, 2^24345022421 is an apocalyptic number.

It is an amenable number.

24345022421 is a deficient number, since it is larger than the sum of its proper divisors (1).

24345022421 is an equidigital number, since it uses as much as digits as its factorization.

24345022421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 29.

Adding to 24345022421 its reverse (12422054342), we get a palindrome (36767076763).

The spelling of 24345022421 in words is "twenty-four billion, three hundred forty-five million, twenty-two thousand, four hundred twenty-one".