20443540143411 has 48 divisors (see below), whose sum is σ = 37419614539008. Its totient is φ = 10445922129600.

The previous prime is 20443540143379. The next prime is 20443540143431. The reversal of 20443540143411 is 11434104534402.

It is a happy number.

20443540143411 is a `hidden beast` number, since 2 + 0 + 4 + 435 + 40 + 143 + 41 + 1 = 666.

It is not a de Polignac number, because 20443540143411 - 2⁵ = 20443540143379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20443540143431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 241761481 + ... + 241846026.

It is an arithmetic number, because the mean of its divisors is an integer number (779575302896).

Almost surely, 2^{20443540143411} is an apocalyptic number.

20443540143411 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20443540143411 is a deficient number, since it is larger than the sum of its proper divisors (16976074395597).

20443540143411 is a wasteful number, since it uses less digits than its factorization.

20443540143411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483607592 (or 483607589 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 20443540143411 its reverse (11434104534402), we get a palindrome (31877644677813).

The spelling of 20443540143411 in words is "twenty trillion, four hundred forty-three billion, five hundred forty million, one hundred forty-three thousand, four hundred eleven".