123054051191 has 2 divisors, whose sum is σ = 123054051192. Its totient is φ = 123054051190.

The previous prime is 123054051181. The next prime is 123054051223. The reversal of 123054051191 is 191150450321.

It is an a-pointer prime, because the next prime (123054051223) can be obtained adding 123054051191 to its sum of digits (32).

It is a weak prime.

It is an emirp because it is prime and its reverse (191150450321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123054051191 - 2¹⁰ = 123054050167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123054051181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61527025595 + 61527025596.

It is an arithmetic number, because the mean of its divisors is an integer number (61527025596).

Almost surely, 2^123054051191 is an apocalyptic number.

123054051191 is a deficient number, since it is larger than the sum of its proper divisors (1).

123054051191 is an equidigital number, since it uses as much as digits as its factorization.

123054051191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 123054051191 in words is "one hundred twenty-three billion, fifty-four million, fifty-one thousand, one hundred ninety-one".