31121014 has 4 divisors (see below), whose sum is σ = 46681524. Its totient is φ = 15560506.

The previous prime is 31120997. The next prime is 31121021. The reversal of 31121014 is 41012113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41012113 = 1289 ⋅31817.

It is a junction number, because it is equal to n+sod(n) for n = 31120985 and 31121003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7780252 + ... + 7780255.

It is an arithmetic number, because the mean of its divisors is an integer number (11670381).

Almost surely, 2^31121014 is an apocalyptic number.

31121014 is a deficient number, since it is larger than the sum of its proper divisors (15560510).

31121014 is a wasteful number, since it uses less digits than its factorization.

31121014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15560509.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 31121014 is about 5578.6211558054. The cubic root of 31121014 is about 314.5462990520.

Adding to 31121014 its reverse (41012113), we get a palindrome (72133127).

The spelling of 31121014 in words is "thirty-one million, one hundred twenty-one thousand, fourteen".