23155062340261 has 4 divisors (see below), whose sum is σ = 23155847260524. Its totient is φ = 23154277420000.

The previous prime is 23155062340219. The next prime is 23155062340297. The reversal of 23155062340261 is 16204326055132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13068181620036 + 10086880720225 = 3614994^2 + 3175985^2 .

It is a cyclic number.

It is not a de Polignac number, because 23155062340261 - 2¹³ = 23155062332069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23155062340211) 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, 392415880 + ... + 392474881.

It is an arithmetic number, because the mean of its divisors is an integer number (5788961815131).

Almost surely, 2^{23155062340261} is an apocalyptic number.

It is an amenable number.

23155062340261 is a deficient number, since it is larger than the sum of its proper divisors (784920263).

23155062340261 is an equidigital number, since it uses as much as digits as its factorization.

23155062340261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784920262.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 23155062340261 its reverse (16204326055132), we get a palindrome (39359388395393).

The spelling of 23155062340261 in words is "twenty-three trillion, one hundred fifty-five billion, sixty-two million, three hundred forty thousand, two hundred sixty-one".