261160232123 has 8 divisors (see below), whose sum is σ = 311445742848. Its totient is φ = 214118947944.

The previous prime is 261160232063. The next prime is 261160232147. The reversal of 261160232123 is 321232061162.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 261160232123 - 2¹⁶ = 261160166587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (261160232023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 811056461 + ... + 811056782.

It is an arithmetic number, because the mean of its divisors is an integer number (38930717856).

Almost surely, 2^261160232123 is an apocalyptic number.

261160232123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

261160232123 is a deficient number, since it is larger than the sum of its proper divisors (50285510725).

261160232123 is a wasteful number, since it uses less digits than its factorization.

261160232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622113273.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 261160232123 its reverse (321232061162), we get a palindrome (582392293285).

The spelling of 261160232123 in words is "two hundred sixty-one billion, one hundred sixty million, two hundred thirty-two thousand, one hundred twenty-three".