12315440403342 has 64 divisors (see below), whose sum is σ = 27486842296320. Its totient is φ = 4087274256000.

The previous prime is 12315440403293. The next prime is 12315440403367. The reversal of 12315440403342 is 24330404451321.

12315440403342 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 544 + 0 + 40 + 33 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 12315440403297 and 12315440403306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65014467 + ... + 65203617.

It is an arithmetic number, because the mean of its divisors is an integer number (429481910880).

Almost surely, 2^{12315440403342} is an apocalyptic number.

12315440403342 is an abundant number, since it is smaller than the sum of its proper divisors (15171401892978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12315440403342 is a wasteful number, since it uses less digits than its factorization.

12315440403342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194406 (or 194400 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 12315440403342 its reverse (24330404451321), we get a palindrome (36645844854663).

The spelling of 12315440403342 in words is "twelve trillion, three hundred fifteen billion, four hundred forty million, four hundred three thousand, three hundred forty-two".