31200434342 has 48 divisors (see below), whose sum is σ = 60058305360. Its totient is φ = 12019392000.

The previous prime is 31200434333. The next prime is 31200434347. The reversal of 31200434342 is 24343400213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31200434347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66659 + ... + 258542.

It is an arithmetic number, because the mean of its divisors is an integer number (1251214695).

Almost surely, 2^31200434342 is an apocalyptic number.

31200434342 is a deficient number, since it is larger than the sum of its proper divisors (28857871018).

31200434342 is a wasteful number, since it uses less digits than its factorization.

31200434342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325317 (or 325310 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31200434342 its reverse (24343400213), we get a palindrome (55543834555).

The spelling of 31200434342 in words is "thirty-one billion, two hundred million, four hundred thirty-four thousand, three hundred forty-two".