1103121871 has 16 divisors (see below), whose sum is σ = 1141693344. Its totient is φ = 1065222144.

The previous prime is 1103121841. The next prime is 1103121881. The reversal of 1103121871 is 1781213011.

It is not a de Polignac number, because 1103121871 - 2²⁵ = 1069567439 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103121841) 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, 1911535 + ... + 1912111.

It is an arithmetic number, because the mean of its divisors is an integer number (71355834).

Almost surely, 2^1103121871 is an apocalyptic number.

1103121871 is a deficient number, since it is larger than the sum of its proper divisors (38571473).

1103121871 is a wasteful number, since it uses less digits than its factorization.

1103121871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050.

The product of its (nonzero) digits is 336, while the sum is 25.

The square root of 1103121871 is about 33213.2785343453. The cubic root of 1103121871 is about 1033.2557522631.

Adding to 1103121871 its reverse (1781213011), we get a palindrome (2884334882).

The spelling of 1103121871 in words is "one billion, one hundred three million, one hundred twenty-one thousand, eight hundred seventy-one".