12131303334434 has 16 divisors (see below), whose sum is σ = 18505162064472. Its totient is φ = 5963446914048.

The previous prime is 12131303334433. The next prime is 12131303334487. The reversal of 12131303334434 is 43443330313121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4229385563209 + 7901917771225 = 2056547^2 + 2811035^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12131303334394 and 12131303334403.

It is not an unprimeable number, because it can be changed into a prime (12131303334433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132687719 + ... + 132779114.

Almost surely, 2^{12131303334434} is an apocalyptic number.

12131303334434 is a deficient number, since it is larger than the sum of its proper divisors (6373858730038).

12131303334434 is a wasteful number, since it uses less digits than its factorization.

12131303334434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265467221.

The product of its (nonzero) digits is 93312, while the sum is 35.

Adding to 12131303334434 its reverse (43443330313121), we get a palindrome (55574633647555).

The spelling of 12131303334434 in words is "twelve trillion, one hundred thirty-one billion, three hundred three million, three hundred thirty-four thousand, four hundred thirty-four".