31442310442 has 8 divisors (see below), whose sum is σ = 47333731716. Its totient is φ = 15664399872.

The previous prime is 31442310409. The next prime is 31442310457. The reversal of 31442310442 is 24401324413.

It can be written as a sum of positive squares in 2 ways, for example, as 28849362201 + 2592948241 = 169851^2 + 50921^2 .

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

It is a super-2 number, since 2×31442310442² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31442310442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28376983 + ... + 28378090.

Almost surely, 2^31442310442 is an apocalyptic number.

31442310442 is a deficient number, since it is larger than the sum of its proper divisors (15891421274).

31442310442 is a wasteful number, since it uses less digits than its factorization.

31442310442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56755352.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31442310442 its reverse (24401324413), we get a palindrome (55843634855).

The spelling of 31442310442 in words is "thirty-one billion, four hundred forty-two million, three hundred ten thousand, four hundred forty-two".