121313403231400 has 48 divisors (see below), whose sum is σ = 283921567633440. Its totient is φ = 48204001272000.

The previous prime is 121313403231389. The next prime is 121313403231421. The reversal of 121313403231400 is 4132304313121.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2008469854 + ... + 2008530253.

It is an arithmetic number, because the mean of its divisors is an integer number (5915032659030).

Almost surely, 2^{121313403231400} is an apocalyptic number.

121313403231400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121313403231400 is an abundant number, since it is smaller than the sum of its proper divisors (162608164402040).

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

121313403231400 is a wasteful number, since it uses less digits than its factorization.

121313403231400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4017000274 (or 4017000265 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 121313403231400 its reverse (4132304313121), we get a palindrome (125445707544521).

The spelling of 121313403231400 in words is "one hundred twenty-one trillion, three hundred thirteen billion, four hundred three million, two hundred thirty-one thousand, four hundred".