1201111108 has 6 divisors (see below), whose sum is σ = 2101944446. Its totient is φ = 600555552.

The previous prime is 1201111091. The next prime is 1201111117. The reversal of 1201111108 is 8011111021.

It can be written as a sum of positive squares in only one way, i.e., 1132187904 + 68923204 = 33648^2 + 8302^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201111091 and 1201111100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150138885 + ... + 150138892.

Almost surely, 2^1201111108 is an apocalyptic number.

It is an amenable number.

1201111108 is a deficient number, since it is larger than the sum of its proper divisors (900833338).

1201111108 is a wasteful number, since it uses less digits than its factorization.

1201111108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300277781 (or 300277779 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

The square root of 1201111108 is about 34657.0499033025. The cubic root of 1201111108 is about 1062.9864481280.

Adding to 1201111108 its reverse (8011111021), we get a palindrome (9212222129).

The spelling of 1201111108 in words is "one billion, two hundred one million, one hundred eleven thousand, one hundred eight".