102123001001 has 32 divisors (see below), whose sum is σ = 124172455680. Its totient is φ = 81989277696.

The previous prime is 102123000979. The next prime is 102123001003. The reversal of 102123001001 is 100100321201.

It is not a de Polignac number, because 102123001001 - 2⁶ = 102123000937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102123001003) 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 31 ways as a sum of consecutive naturals, for example, 22727111 + ... + 22731603.

It is an arithmetic number, because the mean of its divisors is an integer number (3880389240).

Almost surely, 2^102123001001 is an apocalyptic number.

It is an amenable number.

102123001001 is a deficient number, since it is larger than the sum of its proper divisors (22049454679).

102123001001 is a wasteful number, since it uses less digits than its factorization.

102123001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 102123001001 its reverse (100100321201), we get a palindrome (202223322202).

The spelling of 102123001001 in words is "one hundred two billion, one hundred twenty-three million, one thousand, one".