261034421241 has 32 divisors (see below), whose sum is σ = 393633354240. Its totient is φ = 152484444800.

The previous prime is 261034421237. The next prime is 261034421273. The reversal of 261034421241 is 142124430162.

It is not a de Polignac number, because 261034421241 - 2² = 261034421237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 261034421199 and 261034421208.

It is not an unprimeable number, because it can be changed into a prime (261034421441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1049931 + ... + 1274528.

It is an arithmetic number, because the mean of its divisors is an integer number (12301042320).

Almost surely, 2^261034421241 is an apocalyptic number.

It is an amenable number.

261034421241 is a deficient number, since it is larger than the sum of its proper divisors (132598932999).

261034421241 is a wasteful number, since it uses less digits than its factorization.

261034421241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324597.

The product of its (nonzero) digits is 9216, while the sum is 30.

The spelling of 261034421241 in words is "two hundred sixty-one billion, thirty-four million, four hundred twenty-one thousand, two hundred forty-one".