1421103124121 has 8 divisors (see below), whose sum is σ = 1438589933760. Its totient is φ = 1403625007152.

The previous prime is 1421103124117. The next prime is 1421103124141. The reversal of 1421103124121 is 1214213011241.

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 1421103124121 - 2² = 1421103124117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421103124141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843886 + ... + 2498423.

It is an arithmetic number, because the mean of its divisors is an integer number (179823741720).

Almost surely, 2^{1421103124121} is an apocalyptic number.

It is an amenable number.

1421103124121 is a deficient number, since it is larger than the sum of its proper divisors (17486809639).

1421103124121 is an equidigital number, since it uses as much as digits as its factorization.

1421103124121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4346335.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1421103124121 its reverse (1214213011241), we get a palindrome (2635316135362).

The spelling of 1421103124121 in words is "one trillion, four hundred twenty-one billion, one hundred three million, one hundred twenty-four thousand, one hundred twenty-one".