1173801120 has 48 divisors (see below), whose sum is σ = 3697475040. Its totient is φ = 313013504.

The previous prime is 1173801107. The next prime is 1173801127. The reversal of 1173801120 is 211083711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1173801127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1222230 + ... + 1223189.

It is an arithmetic number, because the mean of its divisors is an integer number (77030730).

Almost surely, 2^1173801120 is an apocalyptic number.

1173801120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1173801120 is an abundant number, since it is smaller than the sum of its proper divisors (2523673920).

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

1173801120 is a wasteful number, since it uses less digits than its factorization.

1173801120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445437 (or 2445429 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 1173801120 is about 34260.7810769107. The cubic root of 1173801120 is about 1054.8681341292.

Adding to 1173801120 its reverse (211083711), we get a palindrome (1384884831).

The spelling of 1173801120 in words is "one billion, one hundred seventy-three million, eight hundred one thousand, one hundred twenty".