123040452355 has 16 divisors (see below), whose sum is σ = 157346095104. Its totient is φ = 92149441120.

The previous prime is 123040452349. The next prime is 123040452361. The reversal of 123040452355 is 553254040321.

It is an interprime number because it is at equal distance from previous prime (123040452349) and next prime (123040452361).

It is not a de Polignac number, because 123040452355 - 2⁵ = 123040452323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123040452355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11376691 + ... + 11387500.

It is an arithmetic number, because the mean of its divisors is an integer number (9834130944).

Almost surely, 2^123040452355 is an apocalyptic number.

123040452355 is a deficient number, since it is larger than the sum of its proper divisors (34305642749).

123040452355 is a wasteful number, since it uses less digits than its factorization.

123040452355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22764266.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 123040452355 its reverse (553254040321), we get a palindrome (676294492676).

The spelling of 123040452355 in words is "one hundred twenty-three billion, forty million, four hundred fifty-two thousand, three hundred fifty-five".