263012141037221 has 2 divisors, whose sum is σ = 263012141037222. Its totient is φ = 263012141037220.

The previous prime is 263012141037211. The next prime is 263012141037251. The reversal of 263012141037221 is 122730141210362.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262291952884900 + 720188152321 = 16195430^2 + 848639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263012141037221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263012141037211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131506070518610 + 131506070518611.

It is an arithmetic number, because the mean of its divisors is an integer number (131506070518611).

Almost surely, 2^{263012141037221} is an apocalyptic number.

It is an amenable number.

263012141037221 is a deficient number, since it is larger than the sum of its proper divisors (1).

263012141037221 is an equidigital number, since it uses as much as digits as its factorization.

263012141037221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 263012141037221 its reverse (122730141210362), we get a palindrome (385742282247583).

The spelling of 263012141037221 in words is "two hundred sixty-three trillion, twelve billion, one hundred forty-one million, thirty-seven thousand, two hundred twenty-one".