13123454545140 has 96 divisors (see below), whose sum is σ = 38907892646784. Its totient is φ = 3293669683200.

The previous prime is 13123454545079. The next prime is 13123454545153. The reversal of 13123454545140 is 4154545432131.

It is a junction number, because it is equal to n+sod(n) for n = 13123454545092 and 13123454545101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88928415 + ... + 89075865.

It is an arithmetic number, because the mean of its divisors is an integer number (405290548404).

Almost surely, 2^{13123454545140} is an apocalyptic number.

13123454545140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123454545140 is an abundant number, since it is smaller than the sum of its proper divisors (25784438101644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123454545140 is a wasteful number, since it uses less digits than its factorization.

13123454545140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234737 (or 234735 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 13123454545140 its reverse (4154545432131), we get a palindrome (17277999977271).

The spelling of 13123454545140 in words is "thirteen trillion, one hundred twenty-three billion, four hundred fifty-four million, five hundred forty-five thousand, one hundred forty".