21032103030101 has 2 divisors, whose sum is σ = 21032103030102. Its totient is φ = 21032103030100.

The previous prime is 21032103030091. The next prime is 21032103030137. The reversal of 21032103030101 is 10103030123012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19956536991076 + 1075566039025 = 4467274^2 + 1037095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21032103030101 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21032103030101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21032103033101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516051515050 + 10516051515051.

It is an arithmetic number, because the mean of its divisors is an integer number (10516051515051).

Almost surely, 2^{21032103030101} is an apocalyptic number.

It is an amenable number.

21032103030101 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032103030101 is an equidigital number, since it uses as much as digits as its factorization.

21032103030101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21032103030101 its reverse (10103030123012), we get a palindrome (31135133153113).

The spelling of 21032103030101 in words is "twenty-one trillion, thirty-two billion, one hundred three million, thirty thousand, one hundred one".