12120231304 has 8 divisors (see below), whose sum is σ = 22725433710. Its totient is φ = 6060115648.

The previous prime is 12120231287. The next prime is 12120231329. The reversal of 12120231304 is 40313202121.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11257634404 + 862596900 = 106102^2 + 29370^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757514449 + ... + 757514464.

Almost surely, 2^12120231304 is an apocalyptic number.

It is an amenable number.

12120231304 is a deficient number, since it is larger than the sum of its proper divisors (10605202406).

12120231304 is a wasteful number, since it uses less digits than its factorization.

12120231304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515028919 (or 1515028915 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12120231304 its reverse (40313202121), we get a palindrome (52433433425).

The spelling of 12120231304 in words is "twelve billion, one hundred twenty million, two hundred thirty-one thousand, three hundred four".