20213994129 has 8 divisors (see below), whose sum is σ = 30802276800. Its totient is φ = 11550853776.

The previous prime is 20213994049. The next prime is 20213994139. The reversal of 20213994129 is 92149931202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20213994129 - 2⁹ = 20213993617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20213994139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481285554 + ... + 481285595.

It is an arithmetic number, because the mean of its divisors is an integer number (3850284600).

Almost surely, 2^20213994129 is an apocalyptic number.

It is an amenable number.

20213994129 is a deficient number, since it is larger than the sum of its proper divisors (10588282671).

20213994129 is an equidigital number, since it uses as much as digits as its factorization.

20213994129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962571159.

The product of its (nonzero) digits is 69984, while the sum is 42.

The spelling of 20213994129 in words is "twenty billion, two hundred thirteen million, nine hundred ninety-four thousand, one hundred twenty-nine".