123534054019 has 2 divisors, whose sum is σ = 123534054020. Its totient is φ = 123534054018.

The previous prime is 123534054001. The next prime is 123534054107. The reversal of 123534054019 is 910450435321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123534054019 - 2¹³ = 123534045827 is a prime.

It is a super-2 number, since 2×123534054019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123534055019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61767027009 + 61767027010.

It is an arithmetic number, because the mean of its divisors is an integer number (61767027010).

Almost surely, 2^123534054019 is an apocalyptic number.

123534054019 is a deficient number, since it is larger than the sum of its proper divisors (1).

123534054019 is an equidigital number, since it uses as much as digits as its factorization.

123534054019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 123534054019 in words is "one hundred twenty-three billion, five hundred thirty-four million, fifty-four thousand, nineteen".