123025847334191 has 2 divisors, whose sum is σ = 123025847334192. Its totient is φ = 123025847334190.

The previous prime is 123025847334179. The next prime is 123025847334217. The reversal of 123025847334191 is 191433748520321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123025847334191 - 2¹⁸ = 123025847072047 is a prime.

It is a super-2 number, since 2×123025847334191² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123025847334121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61512923667095 + 61512923667096.

It is an arithmetic number, because the mean of its divisors is an integer number (61512923667096).

Almost surely, 2^{123025847334191} is an apocalyptic number.

123025847334191 is a deficient number, since it is larger than the sum of its proper divisors (1).

123025847334191 is an equidigital number, since it uses as much as digits as its factorization.

123025847334191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 123025847334191 in words is "one hundred twenty-three trillion, twenty-five billion, eight hundred forty-seven million, three hundred thirty-four thousand, one hundred ninety-one".