123022453243 has 4 divisors (see below), whose sum is σ = 123208569568. Its totient is φ = 122836336920.

The previous prime is 123022453231. The next prime is 123022453289. The reversal of 123022453243 is 342354220321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342354220321 = 4241 ⋅80724881.

It is a cyclic number.

It is not a de Polignac number, because 123022453243 - 2²¹ = 123020356091 is a prime.

It is a super-2 number, since 2×123022453243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123022453343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93057171 + ... + 93058492.

It is an arithmetic number, because the mean of its divisors is an integer number (30802142392).

Almost surely, 2^123022453243 is an apocalyptic number.

123022453243 is a deficient number, since it is larger than the sum of its proper divisors (186116325).

123022453243 is an equidigital number, since it uses as much as digits as its factorization.

123022453243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186116324.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 123022453243 its reverse (342354220321), we get a palindrome (465376673564).

The spelling of 123022453243 in words is "one hundred twenty-three billion, twenty-two million, four hundred fifty-three thousand, two hundred forty-three".