31203043243422 has 32 divisors (see below), whose sum is σ = 66077301830400. Its totient is φ = 9789150173568.

The previous prime is 31203043243417. The next prime is 31203043243423. The reversal of 31203043243422 is 22434234030213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203043243423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33860079 + ... + 34769397.

It is an arithmetic number, because the mean of its divisors is an integer number (2064915682200).

Almost surely, 2^{31203043243422} is an apocalyptic number.

31203043243422 is an abundant number, since it is smaller than the sum of its proper divisors (34874258586978).

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

31203043243422 is a wasteful number, since it uses less digits than its factorization.

31203043243422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245760.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 31203043243422 its reverse (22434234030213), we get a palindrome (53637277273635).

The spelling of 31203043243422 in words is "thirty-one trillion, two hundred three billion, forty-three million, two hundred forty-three thousand, four hundred twenty-two".