20533102411 has 2 divisors, whose sum is σ = 20533102412. Its totient is φ = 20533102410.

The previous prime is 20533102391. The next prime is 20533102463. The reversal of 20533102411 is 11420133502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20533102411 - 2¹¹ = 20533100363 is a prime.

It is a super-2 number, since 2×20533102411² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20533102481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10266551205 + 10266551206.

It is an arithmetic number, because the mean of its divisors is an integer number (10266551206).

Almost surely, 2^20533102411 is an apocalyptic number.

20533102411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20533102411 is an equidigital number, since it uses as much as digits as its factorization.

20533102411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 20533102411 its reverse (11420133502), we get a palindrome (31953235913).

The spelling of 20533102411 in words is "twenty billion, five hundred thirty-three million, one hundred two thousand, four hundred eleven".