123147004679 has 2 divisors, whose sum is σ = 123147004680. Its totient is φ = 123147004678.

The previous prime is 123147004621. The next prime is 123147004697. The reversal of 123147004679 is 976400741321.

It is a happy number.

Together with next prime (123147004697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123147004679 - 2¹² = 123147000583 is a prime.

It is a super-2 number, since 2×123147004679² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123147004609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61573502339 + 61573502340.

It is an arithmetic number, because the mean of its divisors is an integer number (61573502340).

Almost surely, 2^123147004679 is an apocalyptic number.

123147004679 is a deficient number, since it is larger than the sum of its proper divisors (1).

123147004679 is an equidigital number, since it uses as much as digits as its factorization.

123147004679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The spelling of 123147004679 in words is "one hundred twenty-three billion, one hundred forty-seven million, four thousand, six hundred seventy-nine".