23210443473409 has 2 divisors, whose sum is σ = 23210443473410. Its totient is φ = 23210443473408.

The previous prime is 23210443473401. The next prime is 23210443473439. The reversal of 23210443473409 is 90437434401232.

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., 23206427463025 + 4016010384 = 4817305^2 + 63372^2 .

It is a cyclic number.

It is not a de Polignac number, because 23210443473409 - 2³ = 23210443473401 is a prime.

It is a super-3 number, since 3×23210443473409³ (a number of 41 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23210443473401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605221736704 + 11605221736705.

It is an arithmetic number, because the mean of its divisors is an integer number (11605221736705).

Almost surely, 2^{23210443473409} is an apocalyptic number.

It is an amenable number.

23210443473409 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210443473409 is an equidigital number, since it uses as much as digits as its factorization.

23210443473409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1741824, while the sum is 46.

The spelling of 23210443473409 in words is "twenty-three trillion, two hundred ten billion, four hundred forty-three million, four hundred seventy-three thousand, four hundred nine".