1201023108 has 144 divisors (see below), whose sum is σ = 3286483200. Its totient is φ = 368831232.

The previous prime is 1201023091. The next prime is 1201023113. The reversal of 1201023108 is 8013201021.

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, 6035193 + ... + 6035391.

It is an arithmetic number, because the mean of its divisors is an integer number (22822800).

Almost surely, 2^1201023108 is an apocalyptic number.

1201023108 is a gapful number since it is divisible by the number (18) 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 1201023108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1643241600).

1201023108 is an abundant number, since it is smaller than the sum of its proper divisors (2085460092).

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

1201023108 is a wasteful number, since it uses less digits than its factorization.

1201023108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1201023108 is about 34655.7802970875. The cubic root of 1201023108 is about 1062.9604874179.

Adding to 1201023108 its reverse (8013201021), we get a palindrome (9214224129).

The spelling of 1201023108 in words is "one billion, two hundred one million, twenty-three thousand, one hundred eight".