101321220311011 has 4 divisors (see below), whose sum is σ = 101321297926024. Its totient is φ = 101321142696000.

The previous prime is 101321220310997. The next prime is 101321220311023. The reversal of 101321220311011 is 110113022123101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101321220311011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101321220311011.

It is not an unprimeable number, because it can be changed into a prime (101321220311081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36815265 + ... + 39471586.

It is an arithmetic number, because the mean of its divisors is an integer number (25330324481506).

Almost surely, 2^{101321220311011} is an apocalyptic number.

101321220311011 is a deficient number, since it is larger than the sum of its proper divisors (77615013).

101321220311011 is an equidigital number, since it uses as much as digits as its factorization.

101321220311011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77615012.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 101321220311011 its reverse (110113022123101), we get a palindrome (211434242434112).

The spelling of 101321220311011 in words is "one hundred one trillion, three hundred twenty-one billion, two hundred twenty million, three hundred eleven thousand, eleven".