312011210320140 has 48 divisors (see below), whose sum is σ = 874823246303328. Its totient is φ = 83089479189504.

The previous prime is 312011210320129. The next prime is 312011210320171. The reversal of 312011210320140 is 41023012110213.

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, 3547150317 + ... + 3547238276.

It is an arithmetic number, because the mean of its divisors is an integer number (18225484297986).

Almost surely, 2^{312011210320140} is an apocalyptic number.

312011210320140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

312011210320140 is an abundant number, since it is smaller than the sum of its proper divisors (562812035983188).

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

312011210320140 is a wasteful number, since it uses less digits than its factorization.

312011210320140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7094389338 (or 7094389336 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 312011210320140 its reverse (41023012110213), we get a palindrome (353034222430353).

The spelling of 312011210320140 in words is "three hundred twelve trillion, eleven billion, two hundred ten million, three hundred twenty thousand, one hundred forty".