123031101847 has 2 divisors, whose sum is σ = 123031101848. Its totient is φ = 123031101846.

The previous prime is 123031101841. The next prime is 123031101877. The reversal of 123031101847 is 748101130321.

It is a weak prime.

It is an emirp because it is prime and its reverse (748101130321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123031101847 - 2¹¹ = 123031099799 is a prime.

It is a super-2 number, since 2×123031101847² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123031101841) 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, 61515550923 + 61515550924.

It is an arithmetic number, because the mean of its divisors is an integer number (61515550924).

Almost surely, 2^123031101847 is an apocalyptic number.

123031101847 is a deficient number, since it is larger than the sum of its proper divisors (1).

123031101847 is an equidigital number, since it uses as much as digits as its factorization.

123031101847 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 123031101847 in words is "one hundred twenty-three billion, thirty-one million, one hundred one thousand, eight hundred forty-seven".