311412220444 has 48 divisors (see below), whose sum is σ = 595079104480. Its totient is φ = 141724753920.

The previous prime is 311412220403. The next prime is 311412220477. The reversal of 311412220444 is 444022214113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21132559 + ... + 21147289.

Almost surely, 2^311412220444 is an apocalyptic number.

It is an amenable number.

311412220444 is a deficient number, since it is larger than the sum of its proper divisors (283666884036).

311412220444 is a wasteful number, since it uses less digits than its factorization.

311412220444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20390 (or 20388 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 311412220444 its reverse (444022214113), we get a palindrome (755434434557).

The spelling of 311412220444 in words is "three hundred eleven billion, four hundred twelve million, two hundred twenty thousand, four hundred forty-four".