201981310 has 16 divisors (see below), whose sum is σ = 363733056. Its totient is φ = 80755488.

The previous prime is 201981289. The next prime is 201981313. The reversal of 201981310 is 13189102.

It is a super-2 number, since 2×201981310² = 81592899178632200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201981313) 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 7 ways as a sum of consecutive naturals, for example, 32299 + ... + 38041.

It is an arithmetic number, because the mean of its divisors is an integer number (22733316).

Almost surely, 2^201981310 is an apocalyptic number.

201981310 is a deficient number, since it is larger than the sum of its proper divisors (161751746).

201981310 is a wasteful number, since it uses less digits than its factorization.

201981310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9267.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 201981310 is about 14212.0128764366. The cubic root of 201981310 is about 586.7283340967.

The spelling of 201981310 in words is "two hundred one million, nine hundred eighty-one thousand, three hundred ten".