123453540053 has 2 divisors, whose sum is σ = 123453540054. Its totient is φ = 123453540052.

The previous prime is 123453540013. The next prime is 123453540059. The reversal of 123453540053 is 350045354321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122610624964 + 842915089 = 350158^2 + 29033^2 .

It is a cyclic number.

It is not a de Polignac number, because 123453540053 - 2¹⁰ = 123453539029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123453539995 and 123453540022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123453540059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61726770026 + 61726770027.

It is an arithmetic number, because the mean of its divisors is an integer number (61726770027).

Almost surely, 2^123453540053 is an apocalyptic number.

It is an amenable number.

123453540053 is a deficient number, since it is larger than the sum of its proper divisors (1).

123453540053 is an equidigital number, since it uses as much as digits as its factorization.

123453540053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 123453540053 its reverse (350045354321), we get a palindrome (473498894374).

The spelling of 123453540053 in words is "one hundred twenty-three billion, four hundred fifty-three million, five hundred forty thousand, fifty-three".