12137206873 has 4 divisors (see below), whose sum is σ = 13240589328. Its totient is φ = 11033824420.

The previous prime is 12137206871. The next prime is 12137206891. The reversal of 12137206873 is 37860273121.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12137206873 - 2¹ = 12137206871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12137206871) 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, 551691211 + ... + 551691232.

It is an arithmetic number, because the mean of its divisors is an integer number (3310147332).

Almost surely, 2^12137206873 is an apocalyptic number.

It is an amenable number.

12137206873 is a deficient number, since it is larger than the sum of its proper divisors (1103382455).

12137206873 is a wasteful number, since it uses less digits than its factorization.

12137206873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103382454.

The product of its (nonzero) digits is 84672, while the sum is 40.

Adding to 12137206873 its reverse (37860273121), we get a palindrome (49997479994).

The spelling of 12137206873 in words is "twelve billion, one hundred thirty-seven million, two hundred six thousand, eight hundred seventy-three".