31204123321242 has 8 divisors (see below), whose sum is σ = 62408246642496. Its totient is φ = 10401374440412.

The previous prime is 31204123321219. The next prime is 31204123321297. The reversal of 31204123321242 is 24212332140213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

31204123321242 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2600343610098 + ... + 2600343610109.

It is an arithmetic number, because the mean of its divisors is an integer number (7801030830312).

Almost surely, 2^{31204123321242} is an apocalyptic number.

31204123321242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31204123321242 is a wasteful number, since it uses less digits than its factorization.

31204123321242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200687220212.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31204123321242 its reverse (24212332140213), we get a palindrome (55416455461455).

The spelling of 31204123321242 in words is "thirty-one trillion, two hundred four billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred forty-two".