21110230203101 has 16 divisors (see below), whose sum is σ = 23752297989504. Its totient is φ = 18615746195904.

The previous prime is 21110230203067. The next prime is 21110230203119. The reversal of 21110230203101 is 10130203201112.

It is not a de Polignac number, because 21110230203101 - 2⁶ = 21110230203037 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 21110230203101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21110230203151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44054531 + ... + 44531136.

It is an arithmetic number, because the mean of its divisors is an integer number (1484518624344).

Almost surely, 2^{21110230203101} is an apocalyptic number.

It is an amenable number.

21110230203101 is a deficient number, since it is larger than the sum of its proper divisors (2642067786403).

21110230203101 is a wasteful number, since it uses less digits than its factorization.

21110230203101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88586500.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21110230203101 its reverse (10130203201112), we get a palindrome (31240433404213).

The spelling of 21110230203101 in words is "twenty-one trillion, one hundred ten billion, two hundred thirty million, two hundred three thousand, one hundred one".