210124031 has 4 divisors (see below), whose sum is σ = 226287432. Its totient is φ = 193960632.

The previous prime is 210124027. The next prime is 210124037. The reversal of 210124031 is 130421012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210124031 - 2² = 210124027 is a prime.

It is a super-2 number, since 2×210124031² = 88304216807377922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210123997 and 210124015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210124037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8081681 + ... + 8081706.

It is an arithmetic number, because the mean of its divisors is an integer number (56571858).

Almost surely, 2^210124031 is an apocalyptic number.

210124031 is a deficient number, since it is larger than the sum of its proper divisors (16163401).

210124031 is a wasteful number, since it uses less digits than its factorization.

210124031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16163400.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 210124031 is about 14495.6555905554. The cubic root of 210124031 is about 594.5091929730.

Adding to 210124031 its reverse (130421012), we get a palindrome (340545043).

The spelling of 210124031 in words is "two hundred ten million, one hundred twenty-four thousand, thirty-one".