1001121337 has 2 divisors, whose sum is σ = 1001121338. Its totient is φ = 1001121336.

The previous prime is 1001121323. The next prime is 1001121367. The reversal of 1001121337 is 7331211001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 986650921 + 14470416 = 31411^2 + 3804^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001121337 - 2¹¹ = 1001119289 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001121367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500560668 + 500560669.

It is an arithmetic number, because the mean of its divisors is an integer number (500560669).

Almost surely, 2^1001121337 is an apocalyptic number.

It is an amenable number.

1001121337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001121337 is an equidigital number, since it uses as much as digits as its factorization.

1001121337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1001121337 is about 31640.5015288949. The cubic root of 1001121337 is about 1000.3736393762.

Adding to 1001121337 its reverse (7331211001), we get a palindrome (8332332338).

The spelling of 1001121337 in words is "one billion, one million, one hundred twenty-one thousand, three hundred thirty-seven".