20411146522141 has 4 divisors (see below), whose sum is σ = 21611802199932. Its totient is φ = 19210490844352.

The previous prime is 20411146522093. The next prime is 20411146522231. The reversal of 20411146522141 is 14122564111402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7944449588100 + 12466696934041 = 2818590^2 + 3530821^2 .

It is a cyclic number.

It is not a de Polignac number, because 20411146522141 - 2²¹ = 20411144424989 is a prime.

It is a super-2 number, since 2×20411146522141² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20411146522097 and 20411146522106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411146529141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600327838870 + ... + 600327838903.

It is an arithmetic number, because the mean of its divisors is an integer number (5402950549983).

Almost surely, 2^{20411146522141} is an apocalyptic number.

It is an amenable number.

20411146522141 is a deficient number, since it is larger than the sum of its proper divisors (1200655677791).

20411146522141 is a wasteful number, since it uses less digits than its factorization.

20411146522141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200655677790.

The product of its (nonzero) digits is 15360, while the sum is 34.

The spelling of 20411146522141 in words is "twenty trillion, four hundred eleven billion, one hundred forty-six million, five hundred twenty-two thousand, one hundred forty-one".