31423161034 has 4 divisors (see below), whose sum is σ = 47134741554. Its totient is φ = 15711580516.

The previous prime is 31423160987. The next prime is 31423161061. The reversal of 31423161034 is 43016132413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43016132413 = 131 ⋅328367423.

It can be written as a sum of positive squares in only one way, i.e., 30427569225 + 995591809 = 174435^2 + 31553^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31423160993 and 31423161011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7855790257 + ... + 7855790260.

Almost surely, 2^31423161034 is an apocalyptic number.

31423161034 is a deficient number, since it is larger than the sum of its proper divisors (15711580520).

31423161034 is a wasteful number, since it uses less digits than its factorization.

31423161034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15711580519.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31423161034 its reverse (43016132413), we get a palindrome (74439293447).

The spelling of 31423161034 in words is "thirty-one billion, four hundred twenty-three million, one hundred sixty-one thousand, thirty-four".