31327123 has 8 divisors (see below), whose sum is σ = 32656592. Its totient is φ = 30023136.

The previous prime is 31327097. The next prime is 31327129. The reversal of 31327123 is 32172313.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31327123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31327094 and 31327103.

It is not an unprimeable number, because it can be changed into a prime (31327129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840 + ... + 8797.

It is an arithmetic number, because the mean of its divisors is an integer number (4082074).

Almost surely, 2^31327123 is an apocalyptic number.

31327123 is a deficient number, since it is larger than the sum of its proper divisors (1329469).

31327123 is a wasteful number, since it uses less digits than its factorization.

31327123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12741.

The product of its digits is 756, while the sum is 22.

The square root of 31327123 is about 5597.0637838066. The cubic root of 31327123 is about 315.2391666471.

Adding to 31327123 its reverse (32172313), we get a palindrome (63499436).

The spelling of 31327123 in words is "thirty-one million, three hundred twenty-seven thousand, one hundred twenty-three".