142440012312 has 64 divisors (see below), whose sum is σ = 383552611680. Its totient is φ = 43820808192.

The previous prime is 142440012287. The next prime is 142440012343. The reversal of 142440012312 is 213210044241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2169438 + ... + 2234130.

Almost surely, 2^142440012312 is an apocalyptic number.

142440012312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142440012312 is an abundant number, since it is smaller than the sum of its proper divisors (241112599368).

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

142440012312 is a wasteful number, since it uses less digits than its factorization.

142440012312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71772 (or 71768 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 142440012312 its reverse (213210044241), we get a palindrome (355650056553).

The spelling of 142440012312 in words is "one hundred forty-two billion, four hundred forty million, twelve thousand, three hundred twelve".