20461331132323 has 2 divisors, whose sum is σ = 20461331132324. Its totient is φ = 20461331132322.

The previous prime is 20461331132227. The next prime is 20461331132357. The reversal of 20461331132323 is 32323113316402.

It is an a-pointer prime, because the next prime (20461331132357) can be obtained adding 20461331132323 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20461331132323 is a prime.

It is not a weakly prime, because it can be changed into another prime (20461331132393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230665566161 + 10230665566162.

It is an arithmetic number, because the mean of its divisors is an integer number (10230665566162).

Almost surely, 2^{20461331132323} is an apocalyptic number.

20461331132323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20461331132323 is an equidigital number, since it uses as much as digits as its factorization.

20461331132323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 34.

Adding to 20461331132323 its reverse (32323113316402), we get a palindrome (52784444448725).

The spelling of 20461331132323 in words is "twenty trillion, four hundred sixty-one billion, three hundred thirty-one million, one hundred thirty-two thousand, three hundred twenty-three".