123453131472 has 120 divisors (see below), whose sum is σ = 377263904160. Its totient is φ = 37374531840.

The previous prime is 123453131443. The next prime is 123453131489. The reversal of 123453131472 is 274131354321.

123453131472 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 53 + 131 + 472 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1656843 + ... + 1729749.

It is an arithmetic number, because the mean of its divisors is an integer number (3143865868).

Almost surely, 2^123453131472 is an apocalyptic number.

123453131472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123453131472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188631952080).

123453131472 is an abundant number, since it is smaller than the sum of its proper divisors (253810772688).

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

123453131472 is a wasteful number, since it uses less digits than its factorization.

123453131472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74001 (or 73992 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

Adding to 123453131472 its reverse (274131354321), we get a palindrome (397584485793).

The spelling of 123453131472 in words is "one hundred twenty-three billion, four hundred fifty-three million, one hundred thirty-one thousand, four hundred seventy-two".