201321231121310 has 64 divisors (see below), whose sum is σ = 372467892912192. Its totient is φ = 78289822964736.

The previous prime is 201321231121277. The next prime is 201321231121397. The reversal of 201321231121310 is 13121132123102.

It is a happy number.

It is a super-2 number, since 2×201321231121310² (a number of 29 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 31 ways as a sum of consecutive naturals, for example, 2744142689 + ... + 2744216051.

It is an arithmetic number, because the mean of its divisors is an integer number (5819810826753).

Almost surely, 2^{201321231121310} is an apocalyptic number.

201321231121310 is a deficient number, since it is larger than the sum of its proper divisors (171146661790882).

201321231121310 is a wasteful number, since it uses less digits than its factorization.

201321231121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79197.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 201321231121310 its reverse (13121132123102), we get a palindrome (214442363244412).

The spelling of 201321231121310 in words is "two hundred one trillion, three hundred twenty-one billion, two hundred thirty-one million, one hundred twenty-one thousand, three hundred ten".