212010023309 has 8 divisors (see below), whose sum is σ = 244561629888. Its totient is φ = 180024531840.

The previous prime is 212010023287. The next prime is 212010023371. The reversal of 212010023309 is 903320010212.

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

It is a cyclic number.

It is not a de Polignac number, because 212010023309 - 2⁸ = 212010023053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212010023209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141527972 + ... + 141529469.

It is an arithmetic number, because the mean of its divisors is an integer number (30570203736).

Almost surely, 2^212010023309 is an apocalyptic number.

It is an amenable number.

212010023309 is a deficient number, since it is larger than the sum of its proper divisors (32551606579).

212010023309 is a wasteful number, since it uses less digits than its factorization.

212010023309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283057555.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 212010023309 in words is "two hundred twelve billion, ten million, twenty-three thousand, three hundred nine".