1001120001 has 16 divisors (see below), whose sum is σ = 1562725248. Its totient is φ = 558115200.

The previous prime is 1001119993. The next prime is 1001120009. The reversal of 1001120001 is 1000211001.

1001120001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1001119993) and next prime (1001120009).

It is not a de Polignac number, because 1001120001 - 2³ = 1001119993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001120009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 580510 + ... + 582231.

It is an arithmetic number, because the mean of its divisors is an integer number (97670328).

Almost surely, 2^1001120001 is an apocalyptic number.

It is an amenable number.

1001120001 is a deficient number, since it is larger than the sum of its proper divisors (561605247).

1001120001 is a wasteful number, since it uses less digits than its factorization.

1001120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162792.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1001120001 is about 31640.4804167067. The cubic root of 1001120001 is about 1000.3731943753.

Adding to 1001120001 its reverse (1000211001), we get a palindrome (2001331002).

The spelling of 1001120001 in words is "one billion, one million, one hundred twenty thousand, one".