263213323229 has 2 divisors, whose sum is σ = 263213323230. Its totient is φ = 263213323228.

The previous prime is 263213323157. The next prime is 263213323267. The reversal of 263213323229 is 922323312362.

It is an a-pointer prime, because the next prime (263213323267) can be obtained adding 263213323229 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248375647129 + 14837676100 = 498373^2 + 121810^2 .

It is a cyclic number.

It is not a de Polignac number, because 263213323229 - 2⁸ = 263213322973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263213323192 and 263213323201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263213320229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131606661614 + 131606661615.

It is an arithmetic number, because the mean of its divisors is an integer number (131606661615).

Almost surely, 2^263213323229 is an apocalyptic number.

It is an amenable number.

263213323229 is a deficient number, since it is larger than the sum of its proper divisors (1).

263213323229 is an equidigital number, since it uses as much as digits as its factorization.

263213323229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 38.

The spelling of 263213323229 in words is "two hundred sixty-three billion, two hundred thirteen million, three hundred twenty-three thousand, two hundred twenty-nine".