210120231 has 8 divisors (see below), whose sum is σ = 286675840. Its totient is φ = 136822392.

The previous prime is 210120217. The next prime is 210120233. The reversal of 210120231 is 132021012.

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

It is not a de Polignac number, because 210120231 - 2¹⁰ = 210119207 is a prime.

It is a super-2 number, since 2×210120231² = 88301022950986722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210120233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 814291 + ... + 814548.

It is an arithmetic number, because the mean of its divisors is an integer number (35834480).

Almost surely, 2^210120231 is an apocalyptic number.

210120231 is a deficient number, since it is larger than the sum of its proper divisors (76555609).

210120231 is a wasteful number, since it uses less digits than its factorization.

210120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1628885.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 210120231 is about 14495.5245162084. The cubic root of 210120231 is about 594.5056091397.

Adding to 210120231 its reverse (132021012), we get a palindrome (342141243).

The spelling of 210120231 in words is "two hundred ten million, one hundred twenty thousand, two hundred thirty-one".