101021311220203 has 4 divisors (see below), whose sum is σ = 110205066785688. Its totient is φ = 91837555654720.

The previous prime is 101021311220201. The next prime is 101021311220267. The reversal of 101021311220203 is 302022113120101.

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 101021311220203 - 2¹ = 101021311220201 is a prime.

It is a super-2 number, since 2×101021311220203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101021311220201) 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, 4591877782726 + ... + 4591877782747.

It is an arithmetic number, because the mean of its divisors is an integer number (27551266696422).

Almost surely, 2^{101021311220203} is an apocalyptic number.

101021311220203 is a deficient number, since it is larger than the sum of its proper divisors (9183755565485).

101021311220203 is an equidigital number, since it uses as much as digits as its factorization.

101021311220203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9183755565484.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101021311220203 its reverse (302022113120101), we get a palindrome (403043424340304).

The spelling of 101021311220203 in words is "one hundred one trillion, twenty-one billion, three hundred eleven million, two hundred twenty thousand, two hundred three".