31134023 has 4 divisors (see below), whose sum is σ = 32207640. Its totient is φ = 30060408.

The previous prime is 31134017. The next prime is 31134043. The reversal of 31134023 is 32043113.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32043113 = 17 ⋅1884889.

It is a cyclic number.

It is not a de Polignac number, because 31134023 - 2⁶ = 31133959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31133992 and 31134010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31134043) 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 3 ways as a sum of consecutive naturals, for example, 536765 + ... + 536822.

It is an arithmetic number, because the mean of its divisors is an integer number (8051910).

Almost surely, 2^31134023 is an apocalyptic number.

31134023 is a deficient number, since it is larger than the sum of its proper divisors (1073617).

31134023 is a wasteful number, since it uses less digits than its factorization.

31134023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073616.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 31134023 is about 5579.7870031033. The cubic root of 31134023 is about 314.5901211328.

Adding to 31134023 its reverse (32043113), we get a palindrome (63177136).

The spelling of 31134023 in words is "thirty-one million, one hundred thirty-four thousand, twenty-three".