121413400305 has 8 divisors (see below), whose sum is σ = 194261440512. Its totient is φ = 64753813488.

The previous prime is 121413400253. The next prime is 121413400351. The reversal of 121413400305 is 503004314121.

It is a happy number.

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

It is not a de Polignac number, because 121413400305 - 2⁷ = 121413400177 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4047113329 + ... + 4047113358.

It is an arithmetic number, because the mean of its divisors is an integer number (24282680064).

Almost surely, 2^121413400305 is an apocalyptic number.

121413400305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121413400305 is a deficient number, since it is larger than the sum of its proper divisors (72848040207).

121413400305 is an equidigital number, since it uses as much as digits as its factorization.

121413400305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094226695.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 121413400305 its reverse (503004314121), we get a palindrome (624417714426).

The spelling of 121413400305 in words is "one hundred twenty-one billion, four hundred thirteen million, four hundred thousand, three hundred five".