312409219124 has 6 divisors (see below), whose sum is σ = 546716133474. Its totient is φ = 156204609560.

The previous prime is 312409219123. The next prime is 312409219141. The reversal of 312409219124 is 421912904213.

It can be written as a sum of positive squares in only one way, i.e., 187575610000 + 124833609124 = 433100^2 + 353318^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312409219123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39051152387 + ... + 39051152394.

It is an arithmetic number, because the mean of its divisors is an integer number (91119355579).

Almost surely, 2^312409219124 is an apocalyptic number.

It is an amenable number.

312409219124 is a deficient number, since it is larger than the sum of its proper divisors (234306914350).

312409219124 is a wasteful number, since it uses less digits than its factorization.

312409219124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78102304785 (or 78102304783 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The spelling of 312409219124 in words is "three hundred twelve billion, four hundred nine million, two hundred nineteen thousand, one hundred twenty-four".