1421132343121 has 16 divisors (see below), whose sum is σ = 1443762028800. Its totient is φ = 1398686284800.

The previous prime is 1421132343097. The next prime is 1421132343143. The reversal of 1421132343121 is 1213432311241.

It is a cyclic number.

It is not a de Polignac number, because 1421132343121 - 2³¹ = 1418984859473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1421132343121.

It is not an unprimeable number, because it can be changed into a prime (1421132343821) 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 15 ways as a sum of consecutive naturals, for example, 48324780 + ... + 48354178.

It is an arithmetic number, because the mean of its divisors is an integer number (90235126800).

Almost surely, 2^{1421132343121} is an apocalyptic number.

It is an amenable number.

1421132343121 is a deficient number, since it is larger than the sum of its proper divisors (22629685679).

1421132343121 is a wasteful number, since it uses less digits than its factorization.

1421132343121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32496.

The product of its digits is 3456, while the sum is 28.

Adding to 1421132343121 its reverse (1213432311241), we get a palindrome (2634564654362).

The spelling of 1421132343121 in words is "one trillion, four hundred twenty-one billion, one hundred thirty-two million, three hundred forty-three thousand, one hundred twenty-one".