31021114 has 4 divisors (see below), whose sum is σ = 46531674. Its totient is φ = 15510556.

The previous prime is 31021093. The next prime is 31021127. The reversal of 31021114 is 41112013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 21003889 + 10017225 = 4583^2 + 3165^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31021094 and 31021103.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7755277 + ... + 7755280.

Almost surely, 2^31021114 is an apocalyptic number.

31021114 is a deficient number, since it is larger than the sum of its proper divisors (15510560).

31021114 is a wasteful number, since it uses less digits than its factorization.

31021114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15510559.

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

The square root of 31021114 is about 5569.6601332577. The cubic root of 31021114 is about 314.2093685277.

Adding to 31021114 its reverse (41112013), we get a palindrome (72133127).

The spelling of 31021114 in words is "thirty-one million, twenty-one thousand, one hundred fourteen".