20061543311353 has 8 divisors (see below), whose sum is σ = 20066665033800. Its totient is φ = 20056422132480.

The previous prime is 20061543311347. The next prime is 20061543311371. The reversal of 20061543311353 is 35311334516002.

It can be written as a sum of positive squares in 4 ways, for example, as 6470730200169 + 13590813111184 = 2543763^2 + 3686572^2 .

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 20061543311353 - 2²⁹ = 20061006440441 is a prime.

It is a super-3 number, since 3×20061543311353³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20061543311333) 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, 79558993 + ... + 79810753.

It is an arithmetic number, because the mean of its divisors is an integer number (2508333129225).

Almost surely, 2^{20061543311353} is an apocalyptic number.

It is an amenable number.

20061543311353 is a deficient number, since it is larger than the sum of its proper divisors (5121722447).

20061543311353 is a wasteful number, since it uses less digits than its factorization.

20061543311353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271787.

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 20061543311353 its reverse (35311334516002), we get a palindrome (55372877827355).

The spelling of 20061543311353 in words is "twenty trillion, sixty-one billion, five hundred forty-three million, three hundred eleven thousand, three hundred fifty-three".