21301130371 has 2 divisors, whose sum is σ = 21301130372. Its totient is φ = 21301130370.

The previous prime is 21301130329. The next prime is 21301130377. The reversal of 21301130371 is 17303110312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21301130371 - 2⁷ = 21301130243 is a prime.

It is not a weakly prime, because it can be changed into another prime (21301130377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10650565185 + 10650565186.

It is an arithmetic number, because the mean of its divisors is an integer number (10650565186).

Almost surely, 2^21301130371 is an apocalyptic number.

21301130371 is a deficient number, since it is larger than the sum of its proper divisors (1).

21301130371 is an equidigital number, since it uses as much as digits as its factorization.

21301130371 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 21301130371 its reverse (17303110312), we get a palindrome (38604240683).

The spelling of 21301130371 in words is "twenty-one billion, three hundred one million, one hundred thirty thousand, three hundred seventy-one".