12298402861 has 4 divisors (see below), whose sum is σ = 12530448252. Its totient is φ = 12066357472.

The previous prime is 12298402793. The next prime is 12298402873. The reversal of 12298402861 is 16820489221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16820489221 = 5881 ⋅2860141.

It can be written as a sum of positive squares in 2 ways, for example, as 5722166025 + 6576236836 = 75645^2 + 81094^2 .

It is a cyclic number.

It is not a de Polignac number, because 12298402861 - 2¹⁵ = 12298370093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12298402891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116022616 + ... + 116022721.

It is an arithmetic number, because the mean of its divisors is an integer number (3132612063).

Almost surely, 2^12298402861 is an apocalyptic number.

It is an amenable number.

12298402861 is a deficient number, since it is larger than the sum of its proper divisors (232045391).

12298402861 is an equidigital number, since it uses as much as digits as its factorization.

12298402861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232045390.

The product of its (nonzero) digits is 110592, while the sum is 43.

The spelling of 12298402861 in words is "twelve billion, two hundred ninety-eight million, four hundred two thousand, eight hundred sixty-one".