423142204121 has 16 divisors (see below), whose sum is σ = 520994842368. Its totient is φ = 334662408000.

The previous prime is 423142204103. The next prime is 423142204127. The reversal of 423142204121 is 121402241324.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423142204121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423142204127) 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, 679250 + ... + 1143531.

It is an arithmetic number, because the mean of its divisors is an integer number (32562177648).

Almost surely, 2^423142204121 is an apocalyptic number.

It is an amenable number.

423142204121 is a deficient number, since it is larger than the sum of its proper divisors (97852638247).

423142204121 is a wasteful number, since it uses less digits than its factorization.

423142204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825352.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 423142204121 its reverse (121402241324), we get a palindrome (544544445445).

The spelling of 423142204121 in words is "four hundred twenty-three billion, one hundred forty-two million, two hundred four thousand, one hundred twenty-one".