1201030989 has 8 divisors (see below), whose sum is σ = 1644655200. Its totient is φ = 779047056.

The previous prime is 1201030981. The next prime is 1201031053. The reversal of 1201030989 is 9890301021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201030989 - 2³ = 1201030981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201030981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5409939 + ... + 5410160.

It is an arithmetic number, because the mean of its divisors is an integer number (205581900).

Almost surely, 2^1201030989 is an apocalyptic number.

It is an amenable number.

1201030989 is a deficient number, since it is larger than the sum of its proper divisors (443624211).

1201030989 is a wasteful number, since it uses less digits than its factorization.

1201030989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10820139.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1201030989 is about 34655.8940008767. The cubic root of 1201030989 is about 1062.9628124282.

The spelling of 1201030989 in words is "one billion, two hundred one million, thirty thousand, nine hundred eighty-nine".