123423131210401 has 4 divisors (see below), whose sum is σ = 134643415865904. Its totient is φ = 112202846554900.

The previous prime is 123423131210363. The next prime is 123423131210497. The reversal of 123423131210401 is 104012131324321.

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 123423131210401 - 2⁷ = 123423131210273 is a prime.

It is a super-3 number, since 3×123423131210401³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 123423131210401.

It is not an unprimeable number, because it can be changed into a prime (123423131210801) 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, 5610142327735 + ... + 5610142327756.

It is an arithmetic number, because the mean of its divisors is an integer number (33660853966476).

Almost surely, 2^{123423131210401} is an apocalyptic number.

123423131210401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123423131210401 is a deficient number, since it is larger than the sum of its proper divisors (11220284655503).

123423131210401 is a wasteful number, since it uses less digits than its factorization.

123423131210401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11220284655502.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 123423131210401 its reverse (104012131324321), we get a palindrome (227435262534722).

The spelling of 123423131210401 in words is "one hundred twenty-three trillion, four hundred twenty-three billion, one hundred thirty-one million, two hundred ten thousand, four hundred one".