20438350141 has 8 divisors (see below), whose sum is σ = 23469876000. Its totient is φ = 17602406640.

The previous prime is 20438350139. The next prime is 20438350151. The reversal of 20438350141 is 14105383402.

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

It is a cyclic number.

It is not a de Polignac number, because 20438350141 - 2¹ = 20438350139 is a prime.

It is a super-2 number, since 2×20438350141² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20438350151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48895366 + ... + 48895783.

It is an arithmetic number, because the mean of its divisors is an integer number (2933734500).

Almost surely, 2^20438350141 is an apocalyptic number.

It is an amenable number.

20438350141 is a deficient number, since it is larger than the sum of its proper divisors (3031525859).

20438350141 is a wasteful number, since it uses less digits than its factorization.

20438350141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97791179.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 20438350141 in words is "twenty billion, four hundred thirty-eight million, three hundred fifty thousand, one hundred forty-one".