1001131049 has 2 divisors, whose sum is σ = 1001131050. Its totient is φ = 1001131048.

The previous prime is 1001131013. The next prime is 1001131123. The reversal of 1001131049 is 9401311001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885955225 + 115175824 = 29765^2 + 10732^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001131049 - 2²⁴ = 984353833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001131049.

It is not a weakly prime, because it can be changed into another prime (1001131849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500565524 + 500565525.

It is an arithmetic number, because the mean of its divisors is an integer number (500565525).

Almost surely, 2^1001131049 is an apocalyptic number.

It is an amenable number.

1001131049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001131049 is an equidigital number, since it uses as much as digits as its factorization.

1001131049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1001131049 is about 31640.6550027018. The cubic root of 1001131049 is about 1000.3768742813.

The spelling of 1001131049 in words is "one billion, one million, one hundred thirty-one thousand, forty-nine".