20431992841 has 8 divisors (see below), whose sum is σ = 22171653504. Its totient is φ = 18716327760.

The previous prime is 20431992829. The next prime is 20431992853. The reversal of 20431992841 is 14829913402.

It is an interprime number because it is at equal distance from previous prime (20431992829) and next prime (20431992853).

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

It is not a de Polignac number, because 20431992841 - 2¹⁹ = 20431468553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20431992041) 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, 5997121 + ... + 6000526.

It is an arithmetic number, because the mean of its divisors is an integer number (2771456688).

Almost surely, 2^20431992841 is an apocalyptic number.

It is an amenable number.

20431992841 is a deficient number, since it is larger than the sum of its proper divisors (1739660663).

20431992841 is a wasteful number, since it uses less digits than its factorization.

20431992841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11997791.

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 20431992841 in words is "twenty billion, four hundred thirty-one million, nine hundred ninety-two thousand, eight hundred forty-one".