31350221342 has 64 divisors (see below), whose sum is σ = 53169177600. Its totient is φ = 13741178880.

The previous prime is 31350221333. The next prime is 31350221359. The reversal of 31350221342 is 24312205313.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40767134 + ... + 40767902.

It is an arithmetic number, because the mean of its divisors is an integer number (830768400).

Almost surely, 2^31350221342 is an apocalyptic number.

31350221342 is a deficient number, since it is larger than the sum of its proper divisors (21818956258).

31350221342 is a wasteful number, since it uses less digits than its factorization.

31350221342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 31350221342 its reverse (24312205313), we get a palindrome (55662426655).

The spelling of 31350221342 in words is "thirty-one billion, three hundred fifty million, two hundred twenty-one thousand, three hundred forty-two".