212310311986 has 8 divisors (see below), whose sum is σ = 319868400240. Its totient is φ = 105687511908.

The previous prime is 212310311981. The next prime is 212310311999. The reversal of 212310311986 is 689113013212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (212310311981) 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, 233821476 + ... + 233822383.

It is an arithmetic number, because the mean of its divisors is an integer number (39983550030).

Almost surely, 2^212310311986 is an apocalyptic number.

212310311986 is a deficient number, since it is larger than the sum of its proper divisors (107558088254).

212310311986 is a wasteful number, since it uses less digits than its factorization.

212310311986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467644088.

The product of its (nonzero) digits is 15552, while the sum is 37.

The spelling of 212310311986 in words is "two hundred twelve billion, three hundred ten million, three hundred eleven thousand, nine hundred eighty-six".