23361545309 has 2 divisors, whose sum is σ = 23361545310. Its totient is φ = 23361545308.

The previous prime is 23361545261. The next prime is 23361545357. The reversal of 23361545309 is 90354516332.

It is a balanced prime because it is at equal distance from previous prime (23361545261) and next prime (23361545357).

It can be written as a sum of positive squares in only one way, i.e., 23155708900 + 205836409 = 152170^2 + 14347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23361545309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23361545359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11680772654 + 11680772655.

It is an arithmetic number, because the mean of its divisors is an integer number (11680772655).

Almost surely, 2^23361545309 is an apocalyptic number.

It is an amenable number.

23361545309 is a deficient number, since it is larger than the sum of its proper divisors (1).

23361545309 is an equidigital number, since it uses as much as digits as its factorization.

23361545309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 291600, while the sum is 41.

The spelling of 23361545309 in words is "twenty-three billion, three hundred sixty-one million, five hundred forty-five thousand, three hundred nine".