31224021034242 has 16 divisors (see below), whose sum is σ = 65734781124960. Its totient is φ = 9860217168672.

The previous prime is 31224021034139. The next prime is 31224021034303. The reversal of 31224021034242 is 24243012042213.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136947460563 + ... + 136947460790.

It is an arithmetic number, because the mean of its divisors is an integer number (4108423820310).

Almost surely, 2^{31224021034242} is an apocalyptic number.

31224021034242 is an abundant number, since it is smaller than the sum of its proper divisors (34510760090718).

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

31224021034242 is a wasteful number, since it uses less digits than its factorization.

31224021034242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273894921377.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31224021034242 its reverse (24243012042213), we get a palindrome (55467033076455).

The spelling of 31224021034242 in words is "thirty-one trillion, two hundred twenty-four billion, twenty-one million, thirty-four thousand, two hundred forty-two".