23219085005261 has 2 divisors, whose sum is σ = 23219085005262. Its totient is φ = 23219085005260.

The previous prime is 23219085005239. The next prime is 23219085005309. The reversal of 23219085005261 is 16250058091232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16088080890025 + 7131004115236 = 4010995^2 + 2670394^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23219085005261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23219085005761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11609542502630 + 11609542502631.

It is an arithmetic number, because the mean of its divisors is an integer number (11609542502631).

Almost surely, 2^{23219085005261} is an apocalyptic number.

It is an amenable number.

23219085005261 is a deficient number, since it is larger than the sum of its proper divisors (1).

23219085005261 is an equidigital number, since it uses as much as digits as its factorization.

23219085005261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 23219085005261 in words is "twenty-three trillion, two hundred nineteen billion, eighty-five million, five thousand, two hundred sixty-one".