1001051011 has 4 divisors (see below), whose sum is σ = 1044574992. Its totient is φ = 957527032.

The previous prime is 1001050991. The next prime is 1001051017. The reversal of 1001051011 is 1101501001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1101501001 = 2741 ⋅401861.

It is a cyclic number.

It is not a de Polignac number, because 1001051011 - 2²¹ = 998953859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001051017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21761956 + ... + 21762001.

It is an arithmetic number, because the mean of its divisors is an integer number (261143748).

Almost surely, 2^1001051011 is an apocalyptic number.

1001051011 is a deficient number, since it is larger than the sum of its proper divisors (43523981).

1001051011 is an equidigital number, since it uses as much as digits as its factorization.

1001051011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43523980.

The product of its (nonzero) digits is 5, while the sum is 10.

The square root of 1001051011 is about 31639.3901805961. The cubic root of 1001051011 is about 1000.3502143356.

Adding to 1001051011 its reverse (1101501001), we get a palindrome (2102552012).

The spelling of 1001051011 in words is "one billion, one million, fifty-one thousand, eleven".