311440304000442 has 16 divisors (see below), whose sum is σ = 625486803016320. Its totient is φ = 103379068830912.

The previous prime is 311440304000411. The next prime is 311440304000491. The reversal of 311440304000442 is 244000403044113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108591457423 + ... + 108591460290.

It is an arithmetic number, because the mean of its divisors is an integer number (39092925188520).

Almost surely, 2^{311440304000442} is an apocalyptic number.

311440304000442 is an abundant number, since it is smaller than the sum of its proper divisors (314046499015878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311440304000442 is a wasteful number, since it uses less digits than its factorization.

311440304000442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217182917957.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 311440304000442 its reverse (244000403044113), we get a palindrome (555440707044555).

The spelling of 311440304000442 in words is "three hundred eleven trillion, four hundred forty billion, three hundred four million, four hundred forty-two", and thus it is an aban number.