12342987801 has 27 divisors (see below), whose sum is σ = 18479215261. Its totient is φ = 7938690144.

The previous prime is 12342987703. The next prime is 12342987863. The reversal of 12342987801 is 10878924321.

It is a happy number.

The square root of 12342987801 is 111099.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 413105625 + 11929882176 = 20325^2 + 109224^2 .

It is not a de Polignac number, because 12342987801 - 2¹⁹ = 12342463513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12342987301) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 9664975 + ... + 9666251.

Almost surely, 2^12342987801 is an apocalyptic number.

12342987801 is the 111099-th square number.

12342987801 is the 55550-th centered octagonal number.

It is an amenable number.

12342987801 is a deficient number, since it is larger than the sum of its proper divisors (6136227460).

12342987801 is an frugal number, since it uses more digits than its factorization.

12342987801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 1309 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The spelling of 12342987801 in words is "twelve billion, three hundred forty-two million, nine hundred eighty-seven thousand, eight hundred one".