1100031144 has 32 divisors (see below), whose sum is σ = 2894820000. Its totient is φ = 347378112.

The previous prime is 1100031139. The next prime is 1100031151. The reversal of 1100031144 is 4411300011.

It is a super-3 number, since 3×1100031144³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205719 + ... + 1206630.

It is an arithmetic number, because the mean of its divisors is an integer number (90463125).

Almost surely, 2^1100031144 is an apocalyptic number.

It is an amenable number.

1100031144 is an abundant number, since it is smaller than the sum of its proper divisors (1794788856).

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

1100031144 is a wasteful number, since it uses less digits than its factorization.

1100031144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412377 (or 2412373 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1100031144 is about 33166.7174136965. The cubic root of 1100031144 is about 1032.2898575862.

Adding to 1100031144 its reverse (4411300011), we get a palindrome (5511331155).

The spelling of 1100031144 in words is "one billion, one hundred million, thirty-one thousand, one hundred forty-four".