12031433121442 has 32 divisors (see below), whose sum is σ = 21051253555200. Its totient is φ = 5155099840800.

The previous prime is 12031433121427. The next prime is 12031433121457. The reversal of 12031433121442 is 24412133413021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12031433121427) and next prime (12031433121457).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 794463 + ... + 4969309.

It is an arithmetic number, because the mean of its divisors is an integer number (657851673600).

Almost surely, 2^{12031433121442} is an apocalyptic number.

12031433121442 is a deficient number, since it is larger than the sum of its proper divisors (9019820433758).

12031433121442 is an equidigital number, since it uses as much as digits as its factorization.

12031433121442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4179071 (or 4179057 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 12031433121442 its reverse (24412133413021), we get a palindrome (36443566534463).

The spelling of 12031433121442 in words is "twelve trillion, thirty-one billion, four hundred thirty-three million, one hundred twenty-one thousand, four hundred forty-two".