123020433311 has 2 divisors, whose sum is σ = 123020433312. Its totient is φ = 123020433310.

The previous prime is 123020433281. The next prime is 123020433329. The reversal of 123020433311 is 113334020321.

It is a strong prime.

It is an emirp because it is prime and its reverse (113334020321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123020433311 - 2³⁴ = 105840564127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123020433391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510216655 + 61510216656.

It is an arithmetic number, because the mean of its divisors is an integer number (61510216656).

Almost surely, 2^123020433311 is an apocalyptic number.

123020433311 is a deficient number, since it is larger than the sum of its proper divisors (1).

123020433311 is an equidigital number, since it uses as much as digits as its factorization.

123020433311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123020433311 its reverse (113334020321), we get a palindrome (236354453632).

The spelling of 123020433311 in words is "one hundred twenty-three billion, twenty million, four hundred thirty-three thousand, three hundred eleven".