261413033231 has 8 divisors (see below), whose sum is σ = 299589949440. Its totient is φ = 223444166328.

The previous prime is 261413033227. The next prime is 261413033261. The reversal of 261413033231 is 132330314162.

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 261413033231 - 2² = 261413033227 is a prime.

It is a super-2 number, since 2×261413033231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 261413033194 and 261413033203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261413033261) 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, 52009631 + ... + 52014656.

It is an arithmetic number, because the mean of its divisors is an integer number (37448743680).

Almost surely, 2^261413033231 is an apocalyptic number.

261413033231 is a deficient number, since it is larger than the sum of its proper divisors (38176916209).

261413033231 is a wasteful number, since it uses less digits than its factorization.

261413033231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104024653.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 261413033231 its reverse (132330314162), we get a palindrome (393743347393).

The spelling of 261413033231 in words is "two hundred sixty-one billion, four hundred thirteen million, thirty-three thousand, two hundred thirty-one".