21203037341 has 2 divisors, whose sum is σ = 21203037342. Its totient is φ = 21203037340.

The previous prime is 21203037337. The next prime is 21203037367. The reversal of 21203037341 is 14373030212.

It is an a-pointer prime, because the next prime (21203037367) can be obtained adding 21203037341 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16276401241 + 4926636100 = 127579^2 + 70190^2 .

It is a cyclic number.

It is not a de Polignac number, because 21203037341 - 2² = 21203037337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21203037341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21203037941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10601518670 + 10601518671.

It is an arithmetic number, because the mean of its divisors is an integer number (10601518671).

Almost surely, 2^21203037341 is an apocalyptic number.

It is an amenable number.

21203037341 is a deficient number, since it is larger than the sum of its proper divisors (1).

21203037341 is an equidigital number, since it uses as much as digits as its factorization.

21203037341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 21203037341 its reverse (14373030212), we get a palindrome (35576067553).

The spelling of 21203037341 in words is "twenty-one billion, two hundred three million, thirty-seven thousand, three hundred forty-one".