201321101012 has 6 divisors (see below), whose sum is σ = 352311926778. Its totient is φ = 100660550504.

The previous prime is 201321100991. The next prime is 201321101029. The reversal of 201321101012 is 210101123102.

It can be written as a sum of positive squares in only one way, i.e., 106089609796 + 95231491216 = 325714^2 + 308596^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25165137623 + ... + 25165137630.

It is an arithmetic number, because the mean of its divisors is an integer number (58718654463).

Almost surely, 2^201321101012 is an apocalyptic number.

It is an amenable number.

201321101012 is a deficient number, since it is larger than the sum of its proper divisors (150990825766).

201321101012 is a wasteful number, since it uses less digits than its factorization.

201321101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50330275257 (or 50330275255 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 201321101012 its reverse (210101123102), we get a palindrome (411422224114).

The spelling of 201321101012 in words is "two hundred one billion, three hundred twenty-one million, one hundred one thousand, twelve".