261122103 has 16 divisors (see below), whose sum is σ = 422016000. Its totient is φ = 158255640.

The previous prime is 261122087. The next prime is 261122107. The reversal of 261122103 is 301221162.

261122103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 261122103 - 2⁴ = 261122087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261122107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439303 + ... + 439896.

It is an arithmetic number, because the mean of its divisors is an integer number (26376000).

Almost surely, 2^261122103 is an apocalyptic number.

261122103 is a deficient number, since it is larger than the sum of its proper divisors (160893897).

261122103 is a wasteful number, since it uses less digits than its factorization.

261122103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879219 (or 879213 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 261122103 is about 16159.2729725071. The cubic root of 261122103 is about 639.1672951289.

Adding to 261122103 its reverse (301221162), we get a palindrome (562343265).

The spelling of 261122103 in words is "two hundred sixty-one million, one hundred twenty-two thousand, one hundred three".