123201432134221 has 8 divisors (see below), whose sum is σ = 140822261012160. Its totient is φ = 105585759328128.

The previous prime is 123201432134173. The next prime is 123201432134239. The reversal of 123201432134221 is 122431234102321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123201432134221 - 2⁴¹ = 121002408878669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123201432434221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1288966756 + ... + 1289062333.

It is an arithmetic number, because the mean of its divisors is an integer number (17602782626520).

Almost surely, 2^{123201432134221} is an apocalyptic number.

It is an amenable number.

123201432134221 is a deficient number, since it is larger than the sum of its proper divisors (17620828877939).

123201432134221 is an equidigital number, since it uses as much as digits as its factorization.

123201432134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578035923.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 123201432134221 its reverse (122431234102321), we get a palindrome (245632666236542).

The spelling of 123201432134221 in words is "one hundred twenty-three trillion, two hundred one billion, four hundred thirty-two million, one hundred thirty-four thousand, two hundred twenty-one".