28340312001 has 16 divisors (see below), whose sum is σ = 38141220864. Its totient is φ = 18716914944.

The previous prime is 28340311969. The next prime is 28340312029. The reversal of 28340312001 is 10021304382.

It is not a de Polignac number, because 28340312001 - 2⁵ = 28340311969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28340312101) 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 in 15 ways as a sum of consecutive naturals, for example, 203001 + ... + 312873.

It is an arithmetic number, because the mean of its divisors is an integer number (2383826304).

Almost surely, 2^28340312001 is an apocalyptic number.

It is an amenable number.

28340312001 is a deficient number, since it is larger than the sum of its proper divisors (9800908863).

28340312001 is a wasteful number, since it uses less digits than its factorization.

28340312001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110680.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 28340312001 its reverse (10021304382), we get a palindrome (38361616383).

The spelling of 28340312001 in words is "twenty-eight billion, three hundred forty million, three hundred twelve thousand, one".