101211012021103 has 4 divisors (see below), whose sum is σ = 101221882077888. Its totient is φ = 101200141964320.

The previous prime is 101211012021079. The next prime is 101211012021109. The reversal of 101211012021103 is 301120210112101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 101211012021103 - 2¹³ = 101211012012911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211012021109) 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, 5435014426 + ... + 5435033047.

It is an arithmetic number, because the mean of its divisors is an integer number (25305470519472).

Almost surely, 2^{101211012021103} is an apocalyptic number.

101211012021103 is a deficient number, since it is larger than the sum of its proper divisors (10870056785).

101211012021103 is an equidigital number, since it uses as much as digits as its factorization.

101211012021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10870056784.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101211012021103 its reverse (301120210112101), we get a palindrome (402331222133204).

The spelling of 101211012021103 in words is "one hundred one trillion, two hundred eleven billion, twelve million, twenty-one thousand, one hundred three".