31434432442 has 32 divisors (see below), whose sum is σ = 56290090752. Its totient is φ = 12872517504.

The previous prime is 31434432433. The next prime is 31434432457. The reversal of 31434432442 is 24423443413.

It is a junction number, because it is equal to n+sod(n) for n = 31434432398 and 31434432407.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255648 + ... + 358084.

It is an arithmetic number, because the mean of its divisors is an integer number (1759065336).

Almost surely, 2^31434432442 is an apocalyptic number.

31434432442 is a deficient number, since it is larger than the sum of its proper divisors (24855658310).

31434432442 is a wasteful number, since it uses less digits than its factorization.

31434432442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103422.

The product of its digits is 110592, while the sum is 34.

Adding to 31434432442 its reverse (24423443413), we get a palindrome (55857875855).

The spelling of 31434432442 in words is "thirty-one billion, four hundred thirty-four million, four hundred thirty-two thousand, four hundred forty-two".