20343114781 has 8 divisors (see below), whose sum is σ = 22792286304. Its totient is φ = 17993909520.

The previous prime is 20343114767. The next prime is 20343114797. The reversal of 20343114781 is 18741134302.

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 20343114781 - 2¹⁷ = 20342983709 is a prime.

It is a super-2 number, since 2×20343114781² (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 (20343114761) 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, 24991135 + ... + 24991948.

It is an arithmetic number, because the mean of its divisors is an integer number (2849035788).

Almost surely, 2^20343114781 is an apocalyptic number.

It is an amenable number.

20343114781 is a deficient number, since it is larger than the sum of its proper divisors (2449171523).

20343114781 is a wasteful number, since it uses less digits than its factorization.

20343114781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49983131.

The product of its (nonzero) digits is 16128, while the sum is 34.

The spelling of 20343114781 in words is "twenty billion, three hundred forty-three million, one hundred fourteen thousand, seven hundred eighty-one".