311323140015140 has 48 divisors (see below), whose sum is σ = 713622669649344. Its totient is φ = 113143389475200.

The previous prime is 311323140015109. The next prime is 311323140015161. The reversal of 311323140015140 is 41510041323113.

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, 406022834 + ... + 406788873.

It is an arithmetic number, because the mean of its divisors is an integer number (14867138951028).

Almost surely, 2^{311323140015140} is an apocalyptic number.

It is an amenable number.

311323140015140 is an abundant number, since it is smaller than the sum of its proper divisors (402299529634204).

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

311323140015140 is a wasteful number, since it uses less digits than its factorization.

311323140015140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812813468 (or 812813466 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 311323140015140 its reverse (41510041323113), we get a palindrome (352833181338253).

The spelling of 311323140015140 in words is "three hundred eleven trillion, three hundred twenty-three billion, one hundred forty million, fifteen thousand, one hundred forty".