13401212123 has 8 divisors (see below), whose sum is σ = 14524000848. Its totient is φ = 12291555744.

The previous prime is 13401212119. The next prime is 13401212141. The reversal of 13401212123 is 32121210431.

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

It is not a de Polignac number, because 13401212123 - 2² = 13401212119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13401212095 and 13401212104.

It is not an unprimeable number, because it can be changed into a prime (13401218123) 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, 3280961 + ... + 3285042.

It is an arithmetic number, because the mean of its divisors is an integer number (1815500106).

Almost surely, 2^13401212123 is an apocalyptic number.

13401212123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13401212123 is a deficient number, since it is larger than the sum of its proper divisors (1122788725).

13401212123 is a wasteful number, since it uses less digits than its factorization.

13401212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6566173.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13401212123 its reverse (32121210431), we get a palindrome (45522422554).

The spelling of 13401212123 in words is "thirteen billion, four hundred one million, two hundred twelve thousand, one hundred twenty-three".