1201131124 has 12 divisors (see below), whose sum is σ = 2225625444. Its totient is φ = 565238144.

The previous prime is 1201131049. The next prime is 1201131137. The reversal of 1201131124 is 4211311021.

It can be written as a sum of positive squares in 2 ways, for example, as 1118902500 + 82228624 = 33450^2 + 9068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1201131098 and 1201131107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8831779 + ... + 8831914.

It is an arithmetic number, because the mean of its divisors is an integer number (185468787).

Almost surely, 2^1201131124 is an apocalyptic number.

It is an amenable number.

1201131124 is a deficient number, since it is larger than the sum of its proper divisors (1024494320).

1201131124 is a wasteful number, since it uses less digits than its factorization.

1201131124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17663714 (or 17663712 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1201131124 is about 34657.3386745145. The cubic root of 1201131124 is about 1062.9923528325.

Adding to 1201131124 its reverse (4211311021), we get a palindrome (5412442145).

The spelling of 1201131124 in words is "one billion, two hundred one million, one hundred thirty-one thousand, one hundred twenty-four".