23403186361 has 3 divisors (see below), whose sum is σ = 23403339343. Its totient is φ = 23403033380.

The previous prime is 23403186349. The next prime is 23403186379. The reversal of 23403186361 is 16368130432.

The square root of 23403186361 is 152981.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 23342033961 + 61152400 = 152781^2 + 7820^2 .

It is not a de Polignac number, because 23403186361 - 2¹⁵ = 23403153593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23403186361.

It is not an unprimeable number, because it can be changed into a prime (23403186311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76491 + ... + 229471.

Almost surely, 2^23403186361 is an apocalyptic number.

23403186361 is the 152981-st square number.

23403186361 is the 76491-st centered octagonal number.

It is an amenable number.

23403186361 is a deficient number, since it is larger than the sum of its proper divisors (152982).

23403186361 is an frugal number, since it uses more digits than its factorization.

23403186361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305962 (or 152981 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

It can be divided in two parts, 23403 and 186361, that added together give a square (209764 = 458²).

The spelling of 23403186361 in words is "twenty-three billion, four hundred three million, one hundred eighty-six thousand, three hundred sixty-one".