23361420261 has 4 divisors (see below), whose sum is σ = 31148560352. Its totient is φ = 15574280172.

The previous prime is 23361420241. The next prime is 23361420263. The reversal of 23361420261 is 16202416332.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23361420261 - 2³³ = 14771485669 is a prime.

It is a super-2 number, since 2×23361420261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23361420263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3893570041 + ... + 3893570046.

It is an arithmetic number, because the mean of its divisors is an integer number (7787140088).

Almost surely, 2^23361420261 is an apocalyptic number.

It is an amenable number.

23361420261 is a deficient number, since it is larger than the sum of its proper divisors (7787140091).

23361420261 is an equidigital number, since it uses as much as digits as its factorization.

23361420261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7787140090.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 23361420261 its reverse (16202416332), we get a palindrome (39563836593).

The spelling of 23361420261 in words is "twenty-three billion, three hundred sixty-one million, four hundred twenty thousand, two hundred sixty-one".