31242227608742 has 16 divisors (see below), whose sum is σ = 48134604468192. Its totient is φ = 15197441667840.

The previous prime is 31242227608733. The next prime is 31242227608747. The reversal of 31242227608742 is 24780672224213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31242227608747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19788434 + ... + 21308837.

It is an arithmetic number, because the mean of its divisors is an integer number (3008412779262).

Almost surely, 2^{31242227608742} is an apocalyptic number.

31242227608742 is a deficient number, since it is larger than the sum of its proper divisors (16892376859450).

31242227608742 is a wasteful number, since it uses less digits than its factorization.

31242227608742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41107583.

The product of its (nonzero) digits is 3612672, while the sum is 50.

The spelling of 31242227608742 in words is "thirty-one trillion, two hundred forty-two billion, two hundred twenty-seven million, six hundred eight thousand, seven hundred forty-two".