1230404312 has 8 divisors (see below), whose sum is σ = 2307008100. Its totient is φ = 615202152.

The previous prime is 1230404311. The next prime is 1230404341. The reversal of 1230404312 is 2134040321.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230404311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76900262 + ... + 76900277.

Almost surely, 2^1230404312 is an apocalyptic number.

It is an amenable number.

1230404312 is a deficient number, since it is larger than the sum of its proper divisors (1076603788).

1230404312 is a wasteful number, since it uses less digits than its factorization.

1230404312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153800545 (or 153800541 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1230404312 is about 35077.1194940520. The cubic root of 1230404312 is about 1071.5586542724.

Adding to 1230404312 its reverse (2134040321), we get a palindrome (3364444633).

The spelling of 1230404312 in words is "one billion, two hundred thirty million, four hundred four thousand, three hundred twelve".