20331145411 has 2 divisors, whose sum is σ = 20331145412. Its totient is φ = 20331145410.

The previous prime is 20331145381. The next prime is 20331145421. The reversal of 20331145411 is 11454113302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20331145411 - 2¹⁵ = 20331112643 is a prime.

It is not a weakly prime, because it can be changed into another prime (20331145421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165572705 + 10165572706.

It is an arithmetic number, because the mean of its divisors is an integer number (10165572706).

Almost surely, 2^20331145411 is an apocalyptic number.

20331145411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331145411 is an equidigital number, since it uses as much as digits as its factorization.

20331145411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 20331145411 its reverse (11454113302), we get a palindrome (31785258713).

The spelling of 20331145411 in words is "twenty billion, three hundred thirty-one million, one hundred forty-five thousand, four hundred eleven".