311430001201320 has 64 divisors (see below), whose sum is σ = 974911308117120. Its totient is φ = 79437217697024.

The previous prime is 311430001201303. The next prime is 311430001201321. The reversal of 311430001201320 is 23102100034113.

It is not an unprimeable number, because it can be changed into a prime (311430001201321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56418475719 + ... + 56418481238.

It is an arithmetic number, because the mean of its divisors is an integer number (15232989189330).

Almost surely, 2^{311430001201320} is an apocalyptic number.

311430001201320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311430001201320 is an abundant number, since it is smaller than the sum of its proper divisors (663481306915800).

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

311430001201320 is a wasteful number, since it uses less digits than its factorization.

311430001201320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112836956994 (or 112836956990 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 311430001201320 its reverse (23102100034113), we get a palindrome (334532101235433).

The spelling of 311430001201320 in words is "three hundred eleven trillion, four hundred thirty billion, one million, two hundred one thousand, three hundred twenty".