21302201300431 has 2 divisors, whose sum is σ = 21302201300432. Its totient is φ = 21302201300430.

The previous prime is 21302201300309. The next prime is 21302201300441. The reversal of 21302201300431 is 13400310220312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21302201300431 - 2¹¹ = 21302201298383 is a prime.

It is a super-2 number, since 2×21302201300431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21302201300441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651100650215 + 10651100650216.

It is an arithmetic number, because the mean of its divisors is an integer number (10651100650216).

Almost surely, 2^{21302201300431} is an apocalyptic number.

21302201300431 is a deficient number, since it is larger than the sum of its proper divisors (1).

21302201300431 is an equidigital number, since it uses as much as digits as its factorization.

21302201300431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21302201300431 its reverse (13400310220312), we get a palindrome (34702511520743).

The spelling of 21302201300431 in words is "twenty-one trillion, three hundred two billion, two hundred one million, three hundred thousand, four hundred thirty-one".