312303321140 has 24 divisors (see below), whose sum is σ = 658388880072. Its totient is φ = 124435251200.

The previous prime is 312303321103. The next prime is 312303321167. The reversal of 312303321140 is 41123303213.

It can be written as a sum of positive squares in 4 ways, for example, as 151120342564 + 161182978576 = 388742^2 + 401476^2 .

It is a congruent number.

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, 30374561 + ... + 30384840.

It is an arithmetic number, because the mean of its divisors is an integer number (27432870003).

Almost surely, 2^312303321140 is an apocalyptic number.

It is an amenable number.

312303321140 is an abundant number, since it is smaller than the sum of its proper divisors (346085558932).

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

312303321140 is a wasteful number, since it uses less digits than its factorization.

312303321140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60759667 (or 60759665 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 312303321140 its reverse (41123303213), we get a palindrome (353426624353).

The spelling of 312303321140 in words is "three hundred twelve billion, three hundred three million, three hundred twenty-one thousand, one hundred forty".