1201839112 has 16 divisors (see below), whose sum is σ = 2331153900. Its totient is φ = 580198080.

The previous prime is 1201839103. The next prime is 1201839113. The reversal of 1201839112 is 2119381021.

It can be written as a sum of positive squares in 2 ways, for example, as 1095212836 + 106626276 = 33094^2 + 10326^2 .

It is a super-2 number, since 2×1201839112² = 2888834502265897088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1201839113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2589939 + ... + 2590402.

Almost surely, 2^1201839112 is an apocalyptic number.

It is an amenable number.

1201839112 is a deficient number, since it is larger than the sum of its proper divisors (1129314788).

1201839112 is a wasteful number, since it uses less digits than its factorization.

1201839112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5180376 (or 5180372 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1201839112 is about 34667.5512835851. The cubic root of 1201839112 is about 1063.2011665628.

The spelling of 1201839112 in words is "one billion, two hundred one million, eight hundred thirty-nine thousand, one hundred twelve".