201123010 has 32 divisors (see below), whose sum is σ = 395658432. Its totient is φ = 73001280.

The previous prime is 201122989. The next prime is 201123059. The reversal of 201123010 is 10321102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73792 + ... + 76468.

It is an arithmetic number, because the mean of its divisors is an integer number (12364326).

Almost surely, 2^201123010 is an apocalyptic number.

201123010 is a deficient number, since it is larger than the sum of its proper divisors (194535422).

201123010 is a wasteful number, since it uses less digits than its factorization.

201123010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3378.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201123010 is about 14181.7844434331. The cubic root of 201123010 is about 585.8960723800.

Adding to 201123010 its reverse (10321102), we get a palindrome (211444112).

The spelling of 201123010 in words is "two hundred one million, one hundred twenty-three thousand, ten".