20123111132093 has 2 divisors, whose sum is σ = 20123111132094. Its totient is φ = 20123111132092.

The previous prime is 20123111132081. The next prime is 20123111132141. The reversal of 20123111132093 is 39023111132102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20121800547289 + 1310584804 = 4485733^2 + 36202^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123111132093 - 2²² = 20123106937789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123111132063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061555566046 + 10061555566047.

It is an arithmetic number, because the mean of its divisors is an integer number (10061555566047).

Almost surely, 2^{20123111132093} is an apocalyptic number.

It is an amenable number.

20123111132093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123111132093 is an equidigital number, since it uses as much as digits as its factorization.

20123111132093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

Adding to 20123111132093 its reverse (39023111132102), we get a palindrome (59146222264195).

The spelling of 20123111132093 in words is "twenty trillion, one hundred twenty-three billion, one hundred eleven million, one hundred thirty-two thousand, ninety-three".