1231204324412 has 6 divisors (see below), whose sum is σ = 2154607567728. Its totient is φ = 615602162204.

The previous prime is 1231204324411. The next prime is 1231204324417. The reversal of 1231204324412 is 2144234021321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231204324411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 153900540548 + ... + 153900540555.

It is an arithmetic number, because the mean of its divisors is an integer number (359101261288).

Almost surely, 2^{1231204324412} is an apocalyptic number.

It is an amenable number.

1231204324412 is a deficient number, since it is larger than the sum of its proper divisors (923403243316).

1231204324412 is a wasteful number, since it uses less digits than its factorization.

1231204324412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307801081107 (or 307801081105 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1231204324412 its reverse (2144234021321), we get a palindrome (3375438345733).

The spelling of 1231204324412 in words is "one trillion, two hundred thirty-one billion, two hundred four million, three hundred twenty-four thousand, four hundred twelve".