123011199106027 has 2 divisors, whose sum is σ = 123011199106028. Its totient is φ = 123011199106026.

The previous prime is 123011199105997. The next prime is 123011199106067. The reversal of 123011199106027 is 720601991110321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123011199106027 - 2¹¹ = 123011199103979 is a prime.

It is not a weakly prime, because it can be changed into another prime (123011199106067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505599553013 + 61505599553014.

It is an arithmetic number, because the mean of its divisors is an integer number (61505599553014).

Almost surely, 2^{123011199106027} is an apocalyptic number.

123011199106027 is a deficient number, since it is larger than the sum of its proper divisors (1).

123011199106027 is an equidigital number, since it uses as much as digits as its factorization.

123011199106027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 43.

The spelling of 123011199106027 in words is "one hundred twenty-three trillion, eleven billion, one hundred ninety-nine million, one hundred six thousand, twenty-seven".