123310021101011 has 2 divisors, whose sum is σ = 123310021101012. Its totient is φ = 123310021101010.

The previous prime is 123310021100999. The next prime is 123310021101067. The reversal of 123310021101011 is 110101120013321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123310021101011 - 2²² = 123310016906707 is a prime.

It is a super-2 number, since 2×123310021101011² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123310021103011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655010550505 + 61655010550506.

It is an arithmetic number, because the mean of its divisors is an integer number (61655010550506).

Almost surely, 2^{123310021101011} is an apocalyptic number.

123310021101011 is a deficient number, since it is larger than the sum of its proper divisors (1).

123310021101011 is an equidigital number, since it uses as much as digits as its factorization.

123310021101011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 123310021101011 its reverse (110101120013321), we get a palindrome (233411141114332).

The spelling of 123310021101011 in words is "one hundred twenty-three trillion, three hundred ten billion, twenty-one million, one hundred one thousand, eleven".