12123031302 has 12 divisors (see below), whose sum is σ = 26266567860. Its totient is φ = 4041010428.

The previous prime is 12123031289. The next prime is 12123031307. The reversal of 12123031302 is 20313032121.

12123031302 is a `hidden beast` number, since 121 + 230 + 313 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 673501739 = 12123031302 / (1 + 2 + 1 + 2 + 3 + 0 + 3 + 1 + 3 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123031307) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 336750852 + ... + 336750887.

It is an arithmetic number, because the mean of its divisors is an integer number (2188880655).

Almost surely, 2^12123031302 is an apocalyptic number.

12123031302 is an abundant number, since it is smaller than the sum of its proper divisors (14143536558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123031302 is a wasteful number, since it uses less digits than its factorization.

12123031302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673501747 (or 673501744 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12123031302 its reverse (20313032121), we get a palindrome (32436063423).

The spelling of 12123031302 in words is "twelve billion, one hundred twenty-three million, thirty-one thousand, three hundred two".