121340003430 has 64 divisors (see below), whose sum is σ = 306627068160. Its totient is φ = 30645926784.

The previous prime is 121340003413. The next prime is 121340003453. The reversal of 121340003430 is 34300043121.

It is a junction number, because it is equal to n+sod(n) for n = 121340003397 and 121340003406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2205517 + ... + 2259863.

It is an arithmetic number, because the mean of its divisors is an integer number (4791047940).

Almost surely, 2^121340003430 is an apocalyptic number.

121340003430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121340003430 is an abundant number, since it is smaller than the sum of its proper divisors (185287064730).

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

121340003430 is a wasteful number, since it uses less digits than its factorization.

121340003430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58293.

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

Adding to 121340003430 its reverse (34300043121), we get a palindrome (155640046551).

The spelling of 121340003430 in words is "one hundred twenty-one billion, three hundred forty million, three thousand, four hundred thirty".