201031221310 has 16 divisors (see below), whose sum is σ = 361895880096. Its totient is φ = 80403670368.

The previous prime is 201031221301. The next prime is 201031221427. The reversal of 201031221310 is 13122130102.

201031221310 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×201031221310² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006122 + ... + 1189261.

It is an arithmetic number, because the mean of its divisors is an integer number (22618492506).

Almost surely, 2^201031221310 is an apocalyptic number.

201031221310 is a deficient number, since it is larger than the sum of its proper divisors (160864658786).

201031221310 is a wasteful number, since it uses less digits than its factorization.

201031221310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2204547.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201031221310 its reverse (13122130102), we get a palindrome (214153351412).

The spelling of 201031221310 in words is "two hundred one billion, thirty-one million, two hundred twenty-one thousand, three hundred ten".