311221114 has 8 divisors (see below), whose sum is σ = 466963380. Its totient is φ = 155566656.

The previous prime is 311221111. The next prime is 311221123. The reversal of 311221114 is 411122113.

It can be written as a sum of positive squares in 2 ways, for example, as 309161889 + 2059225 = 17583^2 + 1435^2 .

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

It is a super-3 number, since 3×311221114³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (311221111) 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, 12229 + ... + 27784.

Almost surely, 2^311221114 is an apocalyptic number.

311221114 is a deficient number, since it is larger than the sum of its proper divisors (155742266).

311221114 is a wasteful number, since it uses less digits than its factorization.

311221114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43904.

The product of its digits is 48, while the sum is 16.

The square root of 311221114 is about 17641.4600869656. The cubic root of 311221114 is about 677.6774236103.

Adding to 311221114 its reverse (411122113), we get a palindrome (722343227).

Subtracting 311221114 from its reverse (411122113), we obtain a palindrome (99900999).

The spelling of 311221114 in words is "three hundred eleven million, two hundred twenty-one thousand, one hundred fourteen".