31311134 has 8 divisors (see below), whose sum is σ = 47189928. Its totient is φ = 15581160.

The previous prime is 31311131. The next prime is 31311143. The reversal of 31311134 is 43111313.

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

It is a super-2 number, since 2×31311134² = 1960774224731912, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311131) 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, 36677 + ... + 37520.

It is an arithmetic number, because the mean of its divisors is an integer number (5898741).

Almost surely, 2^31311134 is an apocalyptic number.

31311134 is a deficient number, since it is larger than the sum of its proper divisors (15878794).

31311134 is a wasteful number, since it uses less digits than its factorization.

31311134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74410.

The product of its digits is 108, while the sum is 17.

The square root of 31311134 is about 5595.6352633101. The cubic root of 31311134 is about 315.1855260495.

Adding to 31311134 its reverse (43111313), we get a palindrome (74422447).

The spelling of 31311134 in words is "thirty-one million, three hundred eleven thousand, one hundred thirty-four".