312000720885 has 64 divisors (see below), whose sum is σ = 634018344960. Its totient is φ = 142603675200.

The previous prime is 312000720817. The next prime is 312000720923. The reversal of 312000720885 is 588027000213.

312000720885 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 312000720885 - 2⁹ = 312000720373 is a prime.

It is a super-3 number, since 3×312000720885³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5968110 + ... + 6020160.

It is an arithmetic number, because the mean of its divisors is an integer number (9906536640).

Almost surely, 2^312000720885 is an apocalyptic number.

312000720885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

312000720885 is an abundant number, since it is smaller than the sum of its proper divisors (322017624075).

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

312000720885 is a wasteful number, since it uses less digits than its factorization.

312000720885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58415 (or 58409 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 312000720885 in words is "three hundred twelve billion, seven hundred twenty thousand, eight hundred eighty-five".