1001511201 has 8 divisors (see below), whose sum is σ = 1381394880. Its totient is φ = 644650832.

The previous prime is 1001511197. The next prime is 1001511271. The reversal of 1001511201 is 1021151001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1001511201 - 2² = 1001511197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001511271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5755725 + ... + 5755898.

It is an arithmetic number, because the mean of its divisors is an integer number (172674360).

Almost surely, 2^1001511201 is an apocalyptic number.

It is an amenable number.

1001511201 is a deficient number, since it is larger than the sum of its proper divisors (379883679).

1001511201 is a wasteful number, since it uses less digits than its factorization.

1001511201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11511655.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 1001511201 is about 31646.6617670806. The cubic root of 1001511201 is about 1000.5034801319.

Adding to 1001511201 its reverse (1021151001), we get a palindrome (2022662202).

The spelling of 1001511201 in words is "one billion, one million, five hundred eleven thousand, two hundred one".