20121042413433 has 16 divisors (see below), whose sum is σ = 28902068165376. Its totient is φ = 12377759251200.

The previous prime is 20121042413363. The next prime is 20121042413467. The reversal of 20121042413433 is 33431424012102.

It is not a de Polignac number, because 20121042413433 - 2¹³ = 20121042405241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20121042413433.

It is not an unprimeable number, because it can be changed into a prime (20121042413933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91987185 + ... + 92205662.

It is an arithmetic number, because the mean of its divisors is an integer number (1806379260336).

Almost surely, 2^{20121042413433} is an apocalyptic number.

It is an amenable number.

20121042413433 is a deficient number, since it is larger than the sum of its proper divisors (8781025751943).

20121042413433 is a wasteful number, since it uses less digits than its factorization.

20121042413433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184195664.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 20121042413433 its reverse (33431424012102), we get a palindrome (53552466425535).

The spelling of 20121042413433 in words is "twenty trillion, one hundred twenty-one billion, forty-two million, four hundred thirteen thousand, four hundred thirty-three".