421311242121 has 32 divisors (see below), whose sum is σ = 705062016000. Its totient is φ = 217394086080.

The previous prime is 421311242111. The next prime is 421311242123. The reversal of 421311242121 is 121242113124.

It is not a de Polignac number, because 421311242121 - 2⁶ = 421311242057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 421311242091 and 421311242100.

It is not an unprimeable number, because it can be changed into a prime (421311242123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6085911 + ... + 6154748.

It is an arithmetic number, because the mean of its divisors is an integer number (22033188000).

Almost surely, 2^421311242121 is an apocalyptic number.

It is an amenable number.

421311242121 is a deficient number, since it is larger than the sum of its proper divisors (283750773879).

421311242121 is a wasteful number, since it uses less digits than its factorization.

421311242121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12240829.

The product of its digits is 768, while the sum is 24.

Adding to 421311242121 its reverse (121242113124), we get a palindrome (542553355245).

The spelling of 421311242121 in words is "four hundred twenty-one billion, three hundred eleven million, two hundred forty-two thousand, one hundred twenty-one".