56101011001 has 4 divisors (see below), whose sum is σ = 64115441152. Its totient is φ = 48086580852.

The previous prime is 56101010989. The next prime is 56101011011. The reversal of 56101011001 is 10011010165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 56101011001 - 2⁷ = 56101010873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56101011011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4007215065 + ... + 4007215078.

It is an arithmetic number, because the mean of its divisors is an integer number (16028860288).

Almost surely, 2^56101011001 is an apocalyptic number.

It is an amenable number.

56101011001 is a deficient number, since it is larger than the sum of its proper divisors (8014430151).

56101011001 is an equidigital number, since it uses as much as digits as its factorization.

56101011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8014430150.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 56101011001 its reverse (10011010165), we get a palindrome (66112021166).

The spelling of 56101011001 in words is "fifty-six billion, one hundred one million, eleven thousand, one".