121313401404 has 96 divisors (see below), whose sum is σ = 309066347520. Its totient is φ = 36810678528.

The previous prime is 121313401403. The next prime is 121313401411. The reversal of 121313401404 is 404104313121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313401403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11172442 + ... + 11183294.

It is an arithmetic number, because the mean of its divisors is an integer number (3219441120).

Almost surely, 2^121313401404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121313401404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154533173760).

121313401404 is an abundant number, since it is smaller than the sum of its proper divisors (187752946116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121313401404 is a wasteful number, since it uses less digits than its factorization.

121313401404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11859 (or 11857 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121313401404 its reverse (404104313121), we get a palindrome (525417714525).

The spelling of 121313401404 in words is "one hundred twenty-one billion, three hundred thirteen million, four hundred one thousand, four hundred four".