1001011201189 has 2 divisors, whose sum is σ = 1001011201190. Its totient is φ = 1001011201188.

The previous prime is 1001011201147. The next prime is 1001011201261. The reversal of 1001011201189 is 9811021101001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 732436430625 + 268574770564 = 855825^2 + 518242^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001011201189 - 2¹³ = 1001011192997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001011801189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500505600594 + 500505600595.

It is an arithmetic number, because the mean of its divisors is an integer number (500505600595).

Almost surely, 2^{1001011201189} is an apocalyptic number.

It is an amenable number.

1001011201189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001011201189 is an equidigital number, since it uses as much as digits as its factorization.

1001011201189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 1001011201189 in words is "one trillion, one billion, eleven million, two hundred one thousand, one hundred eighty-nine".