13123253430 has 96 divisors (see below), whose sum is σ = 39095784000. Its totient is φ = 2991833856.

The previous prime is 13123253399. The next prime is 13123253453. The reversal of 13123253430 is 3435232131.

13123253430 is a `hidden beast` number, since 1 + 3 + 123 + 2 + 534 + 3 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 13123253394 and 13123253403.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218296 + ... + 271844.

It is an arithmetic number, because the mean of its divisors is an integer number (407247750).

Almost surely, 2^13123253430 is an apocalyptic number.

13123253430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13123253430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19547892000).

13123253430 is an abundant number, since it is smaller than the sum of its proper divisors (25972530570).

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

13123253430 is a wasteful number, since it uses less digits than its factorization.

13123253430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53958 (or 53955 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

Adding to 13123253430 its reverse (3435232131), we get a palindrome (16558485561).

The spelling of 13123253430 in words is "thirteen billion, one hundred twenty-three million, two hundred fifty-three thousand, four hundred thirty".