121340303400 has 48 divisors (see below), whose sum is σ = 376154942400. Its totient is φ = 32357414080.

The previous prime is 121340303377. The next prime is 121340303429. The reversal of 121340303400 is 4303043121.

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, 101116320 + ... + 101117519.

It is an arithmetic number, because the mean of its divisors is an integer number (7836561300).

Almost surely, 2^121340303400 is an apocalyptic number.

121340303400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121340303400 is an abundant number, since it is smaller than the sum of its proper divisors (254814639000).

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

121340303400 is a wasteful number, since it uses less digits than its factorization.

121340303400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202233858 (or 202233849 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 121340303400 its reverse (4303043121), we get a palindrome (125643346521).

The spelling of 121340303400 in words is "one hundred twenty-one billion, three hundred forty million, three hundred three thousand, four hundred".