312111035140 has 12 divisors (see below), whose sum is σ = 655433173836. Its totient is φ = 124844414048.

The previous prime is 312111035129. The next prime is 312111035141. The reversal of 312111035140 is 41530111213.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 211642322116 + 100468713024 = 460046^2 + 316968^2 .

It is not an unprimeable number, because it can be changed into a prime (312111035141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7802775859 + ... + 7802775898.

It is an arithmetic number, because the mean of its divisors is an integer number (54619431153).

Almost surely, 2^312111035140 is an apocalyptic number.

It is an amenable number.

312111035140 is an abundant number, since it is smaller than the sum of its proper divisors (343322138696).

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

312111035140 is a wasteful number, since it uses less digits than its factorization.

312111035140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15605551766 (or 15605551764 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 312111035140 its reverse (41530111213), we get a palindrome (353641146353).

The spelling of 312111035140 in words is "three hundred twelve billion, one hundred eleven million, thirty-five thousand, one hundred forty".