121302400110540 has 192 divisors, whose sum is σ = 395918469112320. Its totient is φ = 27422923714560.

The previous prime is 121302400110503. The next prime is 121302400110583. The reversal of 121302400110540 is 45011004203121.

It is a self number, because there is not a number n which added to its sum of digits gives 121302400110540.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48369982 + ... + 50815941.

It is an arithmetic number, because the mean of its divisors is an integer number (2062075359960).

Almost surely, 2^{121302400110540} is an apocalyptic number.

121302400110540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121302400110540 is an abundant number, since it is smaller than the sum of its proper divisors (274616069001780).

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

121302400110540 is a wasteful number, since it uses less digits than its factorization.

121302400110540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99186072 (or 99186070 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 121302400110540 its reverse (45011004203121), we get a palindrome (166313404313661).

The spelling of 121302400110540 in words is "one hundred twenty-one trillion, three hundred two billion, four hundred million, one hundred ten thousand, five hundred forty".