123053545511 has 16 divisors (see below), whose sum is σ = 134563992864. Its totient is φ = 111840528384.

The previous prime is 123053545507. The next prime is 123053545553. The reversal of 123053545511 is 115545350321.

It is not a de Polignac number, because 123053545511 - 2² = 123053545507 is a prime.

It is a super-2 number, since 2×123053545511² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123053545211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 446615 + ... + 667511.

It is an arithmetic number, because the mean of its divisors is an integer number (8410249554).

Almost surely, 2^123053545511 is an apocalyptic number.

123053545511 is a deficient number, since it is larger than the sum of its proper divisors (11510447353).

123053545511 is a wasteful number, since it uses less digits than its factorization.

123053545511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221570.

The product of its (nonzero) digits is 45000, while the sum is 35.

Adding to 123053545511 its reverse (115545350321), we get a palindrome (238598895832).

The spelling of 123053545511 in words is "one hundred twenty-three billion, fifty-three million, five hundred forty-five thousand, five hundred eleven".