121340420003 has 8 divisors (see below), whose sum is σ = 133136521776. Its totient is φ = 109671844000.

The previous prime is 121340419901. The next prime is 121340420021. The reversal of 121340420003 is 300024043121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121340420003 - 2¹² = 121340415907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121340420063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31879448 + ... + 31883253.

It is an arithmetic number, because the mean of its divisors is an integer number (16642065222).

Almost surely, 2^121340420003 is an apocalyptic number.

121340420003 is a deficient number, since it is larger than the sum of its proper divisors (11796101773).

121340420003 is a wasteful number, since it uses less digits than its factorization.

121340420003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63762885.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 121340420003 its reverse (300024043121), we get a palindrome (421364463124).

The spelling of 121340420003 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty thousand, three".