1201123170 has 96 divisors (see below), whose sum is σ = 3396137472. Its totient is φ = 292761216.

The previous prime is 1201123163. The next prime is 1201123199. The reversal of 1201123170 is 713211021.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 115527 + ... + 125493.

It is an arithmetic number, because the mean of its divisors is an integer number (35376432).

Almost surely, 2^1201123170 is an apocalyptic number.

1201123170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201123170, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698068736).

1201123170 is an abundant number, since it is smaller than the sum of its proper divisors (2195014302).

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

1201123170 is a wasteful number, since it uses less digits than its factorization.

1201123170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096 (or 10093 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 1201123170 is about 34657.2239222936. The cubic root of 1201123170 is about 1062.9900064166.

Adding to 1201123170 its reverse (713211021), we get a palindrome (1914334191).

The spelling of 1201123170 in words is "one billion, two hundred one million, one hundred twenty-three thousand, one hundred seventy".