1202010989 has 2 divisors, whose sum is σ = 1202010990. Its totient is φ = 1202010988.

The previous prime is 1202010983. The next prime is 1202011033. The reversal of 1202010989 is 9890102021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 758066089 + 443944900 = 27533^2 + 21070^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202010989 - 2⁴ = 1202010973 is a prime.

1202010989 is a modest number, since divided by 10989 gives 1202 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202010983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601005494 + 601005495.

It is an arithmetic number, because the mean of its divisors is an integer number (601005495).

Almost surely, 2^1202010989 is an apocalyptic number.

It is an amenable number.

1202010989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202010989 is an equidigital number, since it uses as much as digits as its factorization.

1202010989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 1202010989 is about 34670.0301268978. The cubic root of 1202010989 is about 1063.2518475329.

The spelling of 1202010989 in words is "one billion, two hundred two million, ten thousand, nine hundred eighty-nine".