312305505436 has 48 divisors (see below), whose sum is σ = 563053510656. Its totient is φ = 151493436864.

The previous prime is 312305505427. The next prime is 312305505481. The reversal of 312305505436 is 634505503213.

It is a junction number, because it is equal to n+sod(n) for n = 312305505395 and 312305505404.

It is a congruent number.

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, 30484531 + ... + 30494773.

It is an arithmetic number, because the mean of its divisors is an integer number (11730281472).

Almost surely, 2^312305505436 is an apocalyptic number.

It is an amenable number.

312305505436 is a deficient number, since it is larger than the sum of its proper divisors (250748005220).

312305505436 is a wasteful number, since it uses less digits than its factorization.

312305505436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11698 (or 11696 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 37.

The spelling of 312305505436 in words is "three hundred twelve billion, three hundred five million, five hundred five thousand, four hundred thirty-six".