201023010 has 96 divisors (see below), whose sum is σ = 536035968. Its totient is φ = 52254720.

The previous prime is 201022993. The next prime is 201023029. The reversal of 201023010 is 10320102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 201022983 and 201023001.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1041474 + ... + 1041666.

It is an arithmetic number, because the mean of its divisors is an integer number (5583708).

Almost surely, 2^201023010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201023010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268017984).

201023010 is an abundant number, since it is smaller than the sum of its proper divisors (335012958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201023010 is a wasteful number, since it uses less digits than its factorization.

201023010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440 (or 437 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 201023010 is about 14178.2583556656. The cubic root of 201023010 is about 585.7989521809.

Adding to 201023010 its reverse (10320102), we get a palindrome (211343112).

The spelling of 201023010 in words is "two hundred one million, twenty-three thousand, ten".