121231300404 has 24 divisors (see below), whose sum is σ = 283018226400. Its totient is φ = 40389691744.

The previous prime is 121231300373. The next prime is 121231300447. The reversal of 121231300404 is 404003132121.

It is a congruent number.

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, 2568354 + ... + 2615129.

It is an arithmetic number, because the mean of its divisors is an integer number (11792426100).

Almost surely, 2^121231300404 is an apocalyptic number.

It is an amenable number.

121231300404 is an abundant number, since it is smaller than the sum of its proper divisors (161786925996).

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

121231300404 is a wasteful number, since it uses less digits than its factorization.

121231300404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5185439 (or 5185437 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121231300404 its reverse (404003132121), we get a palindrome (525234432525).

The spelling of 121231300404 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred thousand, four hundred four".