123155225412553 has 8 divisors (see below), whose sum is σ = 124061297256000. Its totient is φ = 122250213925488.

The previous prime is 123155225412529. The next prime is 123155225412559. The reversal of 123155225412553 is 355214522551321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123155225412553 is a prime.

It is a super-3 number, since 3×123155225412553³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123155225412559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264855951 + ... + 265320532.

It is an arithmetic number, because the mean of its divisors is an integer number (15507662157000).

Almost surely, 2^{123155225412553} is an apocalyptic number.

It is an amenable number.

123155225412553 is a deficient number, since it is larger than the sum of its proper divisors (906071843447).

123155225412553 is a wasteful number, since it uses less digits than its factorization.

123155225412553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530178191.

The product of its digits is 1800000, while the sum is 46.

Adding to 123155225412553 its reverse (355214522551321), we get a palindrome (478369747963874).

The spelling of 123155225412553 in words is "one hundred twenty-three trillion, one hundred fifty-five billion, two hundred twenty-five million, four hundred twelve thousand, five hundred fifty-three".