21131130101303 has 2 divisors, whose sum is σ = 21131130101304. Its totient is φ = 21131130101302.

The previous prime is 21131130101233. The next prime is 21131130101353. The reversal of 21131130101303 is 30310103113112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21131130101303 - 2⁸ = 21131130101047 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21131130101353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10565565050651 + 10565565050652.

It is an arithmetic number, because the mean of its divisors is an integer number (10565565050652).

Almost surely, 2^{21131130101303} is an apocalyptic number.

21131130101303 is a deficient number, since it is larger than the sum of its proper divisors (1).

21131130101303 is an equidigital number, since it uses as much as digits as its factorization.

21131130101303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 21131130101303 its reverse (30310103113112), we get a palindrome (51441233214415).

The spelling of 21131130101303 in words is "twenty-one trillion, one hundred thirty-one billion, one hundred thirty million, one hundred one thousand, three hundred three".