31423313010163 has 4 divisors (see below), whose sum is σ = 31424636510848. Its totient is φ = 31421989509480.

The previous prime is 31423313010157. The next prime is 31423313010179. The reversal of 31423313010163 is 36101031332413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31423313010163 - 2⁹ = 31423313009651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31423313013163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661714728 + ... + 661762213.

It is an arithmetic number, because the mean of its divisors is an integer number (7856159127712).

Almost surely, 2^{31423313010163} is an apocalyptic number.

31423313010163 is a deficient number, since it is larger than the sum of its proper divisors (1323500685).

31423313010163 is a wasteful number, since it uses less digits than its factorization.

31423313010163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323500684.

The product of its (nonzero) digits is 11664, while the sum is 31.

Adding to 31423313010163 its reverse (36101031332413), we get a palindrome (67524344342576).

The spelling of 31423313010163 in words is "thirty-one trillion, four hundred twenty-three billion, three hundred thirteen million, ten thousand, one hundred sixty-three".