123044220112553 has 2 divisors, whose sum is σ = 123044220112554. Its totient is φ = 123044220112552.

The previous prime is 123044220112507. The next prime is 123044220112621. The reversal of 123044220112553 is 355211022440321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123033284809369 + 10935303184 = 11092037^2 + 104572^2 .

It is an emirp because it is prime and its reverse (355211022440321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123044220112553 - 2¹² = 123044220108457 is a prime.

It is not a weakly prime, because it can be changed into another prime (123044220112153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61522110056276 + 61522110056277.

It is an arithmetic number, because the mean of its divisors is an integer number (61522110056277).

Almost surely, 2^{123044220112553} is an apocalyptic number.

It is an amenable number.

123044220112553 is a deficient number, since it is larger than the sum of its proper divisors (1).

123044220112553 is an equidigital number, since it uses as much as digits as its factorization.

123044220112553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 123044220112553 its reverse (355211022440321), we get a palindrome (478255242552874).

The spelling of 123044220112553 in words is "one hundred twenty-three trillion, forty-four billion, two hundred twenty million, one hundred twelve thousand, five hundred fifty-three".