1180173321 has 10 divisors (see below), whose sum is σ = 1762975082. Its totient is φ = 786782160.

The previous prime is 1180173287. The next prime is 1180173329. The reversal of 1180173321 is 1233710811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 730945296 + 449228025 = 27036^2 + 21195^2 .

It is not a de Polignac number, because 1180173321 - 2⁶ = 1180173257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1180173329) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7284940 + ... + 7285101.

Almost surely, 2^1180173321 is an apocalyptic number.

It is an amenable number.

1180173321 is a deficient number, since it is larger than the sum of its proper divisors (582801761).

1180173321 is an equidigital number, since it uses as much as digits as its factorization.

1180173321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14570053 (or 14570044 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 27.

The square root of 1180173321 is about 34353.6507666944. The cubic root of 1180173321 is about 1056.7735406015.

The spelling of 1180173321 in words is "one billion, one hundred eighty million, one hundred seventy-three thousand, three hundred twenty-one".