12344457901 has 2 divisors, whose sum is σ = 12344457902. Its totient is φ = 12344457900.

The previous prime is 12344457887. The next prime is 12344457907. The reversal of 12344457901 is 10975444321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6280721001 + 6063736900 = 79251^2 + 77870^2 .

It is a cyclic number.

It is not a de Polignac number, because 12344457901 - 2¹³ = 12344449709 is a prime.

It is a super-2 number, since 2×12344457901² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12344457907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6172228950 + 6172228951.

It is an arithmetic number, because the mean of its divisors is an integer number (6172228951).

Almost surely, 2^12344457901 is an apocalyptic number.

It is an amenable number.

12344457901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12344457901 is an equidigital number, since it uses as much as digits as its factorization.

12344457901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 12344457901 in words is "twelve billion, three hundred forty-four million, four hundred fifty-seven thousand, nine hundred one".