201101132989 has 2 divisors, whose sum is σ = 201101132990. Its totient is φ = 201101132988.

The previous prime is 201101132977. The next prime is 201101133031. The reversal of 201101132989 is 989231101102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197276328964 + 3824804025 = 444158^2 + 61845^2 .

It is a cyclic number.

It is not a de Polignac number, because 201101132989 - 2¹³ = 201101124797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201101132909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100550566494 + 100550566495.

It is an arithmetic number, because the mean of its divisors is an integer number (100550566495).

Almost surely, 2^201101132989 is an apocalyptic number.

It is an amenable number.

201101132989 is a deficient number, since it is larger than the sum of its proper divisors (1).

201101132989 is an equidigital number, since it uses as much as digits as its factorization.

201101132989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 37.

The spelling of 201101132989 in words is "two hundred one billion, one hundred one million, one hundred thirty-two thousand, nine hundred eighty-nine".