12320123134 has 8 divisors (see below), whose sum is σ = 20160201528. Its totient is φ = 5600055960.

The previous prime is 12320123129. The next prime is 12320123143. The reversal of 12320123134 is 43132102321.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 560005597 = 12320123134 / (1 + 2 + 3 + 2 + 0 + 1 + 2 + 3 + 1 + 3 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280002777 + ... + 280002820.

It is an arithmetic number, because the mean of its divisors is an integer number (2520025191).

Almost surely, 2^12320123134 is an apocalyptic number.

12320123134 is a deficient number, since it is larger than the sum of its proper divisors (7840078394).

12320123134 is a wasteful number, since it uses less digits than its factorization.

12320123134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560005610.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12320123134 its reverse (43132102321), we get a palindrome (55452225455).

The spelling of 12320123134 in words is "twelve billion, three hundred twenty million, one hundred twenty-three thousand, one hundred thirty-four".