123001231001 has 4 divisors (see below), whose sum is σ = 134183161104. Its totient is φ = 111819300900.

The previous prime is 123001230983. The next prime is 123001231103. The reversal of 123001231001 is 100132100321.

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 123001231001 - 2²² = 122997036697 is a prime.

It is a super-2 number, since 2×123001231001² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123001239001) 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, 5590965035 + ... + 5590965056.

It is an arithmetic number, because the mean of its divisors is an integer number (33545790276).

Almost surely, 2^123001231001 is an apocalyptic number.

123001231001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123001231001 is a deficient number, since it is larger than the sum of its proper divisors (11181930103).

123001231001 is a wasteful number, since it uses less digits than its factorization.

123001231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181930102.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 123001231001 its reverse (100132100321), we get a palindrome (223133331322).

The spelling of 123001231001 in words is "one hundred twenty-three billion, one million, two hundred thirty-one thousand, one".