20142434012121 has 96 divisors (see below), whose sum is σ = 32200173637632. Its totient is φ = 12554137252800.

The previous prime is 20142434012101. The next prime is 20142434012149. The reversal of 20142434012121 is 12121043424102.

20142434012121 is a `hidden beast` number, since 2 + 0 + 1 + 4 + 2 + 43 + 401 + 212 + 1 = 666.

It is not a de Polignac number, because 20142434012121 - 2¹⁷ = 20142433881049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20142434012101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 77775796 + ... + 78034346.

It is an arithmetic number, because the mean of its divisors is an integer number (335418475392).

Almost surely, 2^{20142434012121} is an apocalyptic number.

It is an amenable number.

20142434012121 is a deficient number, since it is larger than the sum of its proper divisors (12057739625511).

20142434012121 is a wasteful number, since it uses less digits than its factorization.

20142434012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258905 (or 258893 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 20142434012121 its reverse (12121043424102), we get a palindrome (32263477436223).

The spelling of 20142434012121 in words is "twenty trillion, one hundred forty-two billion, four hundred thirty-four million, twelve thousand, one hundred twenty-one".