1101173128 has 16 divisors (see below), whose sum is σ = 2252399760. Its totient is φ = 500533200.

The previous prime is 1101173119. The next prime is 1101173131. The reversal of 1101173128 is 8213711011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6256578 + ... + 6256753.

It is an arithmetic number, because the mean of its divisors is an integer number (140774985).

Almost surely, 2^1101173128 is an apocalyptic number.

It is an amenable number.

1101173128 is an abundant number, since it is smaller than the sum of its proper divisors (1151226632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101173128 is a wasteful number, since it uses less digits than its factorization.

1101173128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12513348 (or 12513344 counting only the distinct ones).

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

The square root of 1101173128 is about 33183.9287607721. The cubic root of 1101173128 is about 1032.6469537779.

Adding to 1101173128 its reverse (8213711011), we get a palindrome (9314884139).

The spelling of 1101173128 in words is "one billion, one hundred one million, one hundred seventy-three thousand, one hundred twenty-eight".