201321101010 has 64 divisors (see below), whose sum is σ = 494521251840. Its totient is φ = 52425024960.

The previous prime is 201321100991. The next prime is 201321101029. The reversal of 201321101010 is 10101123102.

It is an interprime number because it is at equal distance from previous prime (201321100991) and next prime (201321101029).

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 in 31 ways as a sum of consecutive naturals, for example, 6484825 + ... + 6515795.

It is an arithmetic number, because the mean of its divisors is an integer number (7726894560).

Almost surely, 2^201321101010 is an apocalyptic number.

201321101010 is an abundant number, since it is smaller than the sum of its proper divisors (293200150830).

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

201321101010 is a wasteful number, since it uses less digits than its factorization.

201321101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36063.

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

Adding to 201321101010 its reverse (10101123102), we get a palindrome (211422224112).

The spelling of 201321101010 in words is "two hundred one billion, three hundred twenty-one million, one hundred one thousand, ten".