310661311420 has 48 divisors (see below), whose sum is σ = 699152263488. Its totient is φ = 115649233920.

The previous prime is 310661311391. The next prime is 310661311427. The reversal of 310661311420 is 24113166013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310661311427) 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, 9109341 + ... + 9143380.

It is an arithmetic number, because the mean of its divisors is an integer number (14565672156).

Almost surely, 2^310661311420 is an apocalyptic number.

It is an amenable number.

310661311420 is an abundant number, since it is smaller than the sum of its proper divisors (388490952068).

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

310661311420 is a wasteful number, since it uses less digits than its factorization.

310661311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18252790 (or 18252788 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

Adding to 310661311420 its reverse (24113166013), we get a palindrome (334774477433).

The spelling of 310661311420 in words is "three hundred ten billion, six hundred sixty-one million, three hundred eleven thousand, four hundred twenty".