20134432423399 has 48 divisors (see below), whose sum is σ = 25141284001440. Its totient is φ = 16019921111040.

The previous prime is 20134432423393. The next prime is 20134432423439. The reversal of 20134432423399 is 99332423443102.

It is not a de Polignac number, because 20134432423399 - 2⁵ = 20134432423367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134432423393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 29090344 + ... + 29774434.

It is an arithmetic number, because the mean of its divisors is an integer number (523776750030).

Almost surely, 2^{20134432423399} is an apocalyptic number.

20134432423399 is a deficient number, since it is larger than the sum of its proper divisors (5006851578041).

20134432423399 is a wasteful number, since it uses less digits than its factorization.

20134432423399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684608 (or 684601 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 49.

The spelling of 20134432423399 in words is "twenty trillion, one hundred thirty-four billion, four hundred thirty-two million, four hundred twenty-three thousand, three hundred ninety-nine".