123451038736 has 45 divisors (see below), whose sum is σ = 254132993469. Its totient is φ = 58083363072.

The previous prime is 123451038703. The next prime is 123451038761. The reversal of 123451038736 is 637830154321.

The square root of 123451038736 is 351356.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 96112400400 + 27338638336 = 310020^2 + 165344^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123451038692 and 123451038701.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 23889625 + ... + 23894791.

Almost surely, 2^123451038736 is an apocalyptic number.

123451038736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

123451038736 is the 351356-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123451038736

123451038736 is an abundant number, since it is smaller than the sum of its proper divisors (130681954733).

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

123451038736 is an frugal number, since it uses more digits than its factorization.

123451038736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10376 (or 5186 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 123451038736 in words is "one hundred twenty-three billion, four hundred fifty-one million, thirty-eight thousand, seven hundred thirty-six".