20411443231433 has 8 divisors (see below), whose sum is σ = 20420489790600. Its totient is φ = 20402397227520.

The previous prime is 20411443231427. The next prime is 20411443231451. The reversal of 20411443231433 is 33413234411402.

It can be written as a sum of positive squares in 4 ways, for example, as 2584917941824 + 17826525289609 = 1607768^2 + 4222147^2 .

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 20411443231433 - 2³² = 20407148264137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20411443231393 and 20411443231402.

It is not an unprimeable number, because it can be changed into a prime (20411443231423) 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, 84806843 + ... + 85047183.

It is an arithmetic number, because the mean of its divisors is an integer number (2552561223825).

Almost surely, 2^{20411443231433} is an apocalyptic number.

It is an amenable number.

20411443231433 is a deficient number, since it is larger than the sum of its proper divisors (9046559167).

20411443231433 is a wasteful number, since it uses less digits than its factorization.

20411443231433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277627.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 20411443231433 its reverse (33413234411402), we get a palindrome (53824677642835).

The spelling of 20411443231433 in words is "twenty trillion, four hundred eleven billion, four hundred forty-three million, two hundred thirty-one thousand, four hundred thirty-three".