312123145210 has 16 divisors (see below), whose sum is σ = 563910222600. Its totient is φ = 124385133376.

The previous prime is 312123145193. The next prime is 312123145223. The reversal of 312123145210 is 12541321213.

It can be written as a sum of positive squares in 4 ways, for example, as 264394441249 + 47728703961 = 514193^2 + 218469^2 .

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, 58012765 + ... + 58018144.

Almost surely, 2^312123145210 is an apocalyptic number.

312123145210 is a deficient number, since it is larger than the sum of its proper divisors (251787077390).

312123145210 is a wasteful number, since it uses less digits than its factorization.

312123145210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116031185.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 312123145210 its reverse (12541321213), we get a palindrome (324664466423).

The spelling of 312123145210 in words is "three hundred twelve billion, one hundred twenty-three million, one hundred forty-five thousand, two hundred ten".