123364505077 has 4 divisors (see below), whose sum is σ = 134579460096. Its totient is φ = 112149550060.

The previous prime is 123364505029. The next prime is 123364505107. The reversal of 123364505077 is 770505463321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123364505077 - 2³⁵ = 89004766709 is a prime.

It is a super-2 number, since 2×123364505077² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123364505477) 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, 5607477493 + ... + 5607477514.

It is an arithmetic number, because the mean of its divisors is an integer number (33644865024).

Almost surely, 2^123364505077 is an apocalyptic number.

It is an amenable number.

123364505077 is a deficient number, since it is larger than the sum of its proper divisors (11214955019).

123364505077 is a wasteful number, since it uses less digits than its factorization.

123364505077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11214955018.

The product of its (nonzero) digits is 529200, while the sum is 43.

Adding to 123364505077 its reverse (770505463321), we get a palindrome (893869968398).

The spelling of 123364505077 in words is "one hundred twenty-three billion, three hundred sixty-four million, five hundred five thousand, seventy-seven".