31034213 has 4 divisors (see below), whose sum is σ = 35467680. Its totient is φ = 26600748.

The previous prime is 31034191. The next prime is 31034219. The reversal of 31034213 is 31243013.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31034213 - 2⁶ = 31034149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31034191 and 31034200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31034219) 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, 2216723 + ... + 2216736.

It is an arithmetic number, because the mean of its divisors is an integer number (8866920).

Almost surely, 2^31034213 is an apocalyptic number.

It is an amenable number.

31034213 is a deficient number, since it is larger than the sum of its proper divisors (4433467).

31034213 is an equidigital number, since it uses as much as digits as its factorization.

31034213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433466.

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

The square root of 31034213 is about 5570.8359336818. The cubic root of 31034213 is about 314.2535884026.

Adding to 31034213 its reverse (31243013), we get a palindrome (62277226).

The spelling of 31034213 in words is "thirty-one million, thirty-four thousand, two hundred thirteen".