311431003001340 has 96 divisors (see below), whose sum is σ = 919287891615744. Its totient is φ = 78659306158080.

The previous prime is 311431003001333. The next prime is 311431003001389. The reversal of 311431003001340 is 43100300134113.

It is a self number, because there is not a number n which added to its sum of digits gives 311431003001340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1781146869 + ... + 1781321708.

It is an arithmetic number, because the mean of its divisors is an integer number (9575915537664).

Almost surely, 2^{311431003001340} is an apocalyptic number.

311431003001340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

311431003001340 is an abundant number, since it is smaller than the sum of its proper divisors (607856888614404).

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

311431003001340 is a wasteful number, since it uses less digits than its factorization.

311431003001340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3562468667 (or 3562468665 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 311431003001340 its reverse (43100300134113), we get a palindrome (354531303135453).

The spelling of 311431003001340 in words is "three hundred eleven trillion, four hundred thirty-one billion, three million, one thousand, three hundred forty".