1201043412 has 36 divisors (see below), whose sum is σ = 3087433440. Its totient is φ = 393561552.

The previous prime is 1201043401. The next prime is 1201043413. The reversal of 1201043412 is 2143401021.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201043413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280608 + ... + 284855.

It is an arithmetic number, because the mean of its divisors is an integer number (85762040).

Almost surely, 2^1201043412 is an apocalyptic number.

1201043412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1201043412 is an abundant number, since it is smaller than the sum of its proper divisors (1886390028).

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

1201043412 is a wasteful number, since it uses less digits than its factorization.

1201043412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565532 (or 565527 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1201043412 is about 34656.0732339946. The cubic root of 1201043412 is about 1062.9664773743.

Adding to 1201043412 its reverse (2143401021), we get a palindrome (3344444433).

The spelling of 1201043412 in words is "one billion, two hundred one million, forty-three thousand, four hundred twelve".