12453022421 has 8 divisors (see below), whose sum is σ = 14232961344. Its totient is φ = 10673317440.

The previous prime is 12453022403. The next prime is 12453022423. The reversal of 12453022421 is 12422035421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12453022421 - 2³⁰ = 11379280597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12453022423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76301 + ... + 175293.

It is an arithmetic number, because the mean of its divisors is an integer number (1779120168).

Almost surely, 2^12453022421 is an apocalyptic number.

It is an amenable number.

12453022421 is a deficient number, since it is larger than the sum of its proper divisors (1779938923).

12453022421 is an equidigital number, since it uses as much as digits as its factorization.

12453022421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116971.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 12453022421 its reverse (12422035421), we get a palindrome (24875057842).

The spelling of 12453022421 in words is "twelve billion, four hundred fifty-three million, twenty-two thousand, four hundred twenty-one".