1173491112 has 128 divisors (see below), whose sum is σ = 3179888640. Its totient is φ = 360080640.

The previous prime is 1173491107. The next prime is 1173491117. The reversal of 1173491112 is 2111943711.

It is an interprime number because it is at equal distance from previous prime (1173491107) and next prime (1173491117).

It is a self number, because there is not a number n which added to its sum of digits gives 1173491112.

It is not an unprimeable number, because it can be changed into a prime (1173491117) 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, 1293363 + ... + 1294269.

It is an arithmetic number, because the mean of its divisors is an integer number (24842880).

Almost surely, 2^1173491112 is an apocalyptic number.

1173491112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1173491112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1589944320).

1173491112 is an abundant number, since it is smaller than the sum of its proper divisors (2006397528).

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

1173491112 is a wasteful number, since it uses less digits than its factorization.

1173491112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031 (or 1027 counting only the distinct ones).

The product of its digits is 1512, while the sum is 30.

The square root of 1173491112 is about 34256.2565380399. The cubic root of 1173491112 is about 1054.7752602603.

The spelling of 1173491112 in words is "one billion, one hundred seventy-three million, four hundred ninety-one thousand, one hundred twelve".