31234223422442 has 48 divisors (see below), whose sum is σ = 50605946804160. Its totient is φ = 14448503067264.

The previous prime is 31234223422439. The next prime is 31234223422477. The reversal of 31234223422442 is 24422432243213.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 31234223422396 and 31234223422405.

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 23 ways as a sum of consecutive naturals, for example, 179452034 + ... + 179626002.

It is an arithmetic number, because the mean of its divisors is an integer number (1054290558420).

Almost surely, 2^{31234223422442} is an apocalyptic number.

31234223422442 is a deficient number, since it is larger than the sum of its proper divisors (19371723381718).

31234223422442 is a wasteful number, since it uses less digits than its factorization.

31234223422442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179835 (or 179816 counting only the distinct ones).

The product of its digits is 442368, while the sum is 38.

Adding to 31234223422442 its reverse (24422432243213), we get a palindrome (55656655665655).

The spelling of 31234223422442 in words is "thirty-one trillion, two hundred thirty-four billion, two hundred twenty-three million, four hundred twenty-two thousand, four hundred forty-two".