123309476752 has 160 divisors (see below), whose sum is σ = 303583497984. Its totient is φ = 47124633600.

The previous prime is 123309476749. The next prime is 123309476789. The reversal of 123309476752 is 257674903321.

It is a junction number, because it is equal to n+sod(n) for n = 123309476696 and 123309476705.

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, 29833278 + ... + 29837410.

Almost surely, 2^123309476752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123309476752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151791748992).

123309476752 is an abundant number, since it is smaller than the sum of its proper divisors (180274021232).

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

123309476752 is a wasteful number, since it uses less digits than its factorization.

123309476752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617 (or 4611 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 49.

The spelling of 123309476752 in words is "one hundred twenty-three billion, three hundred nine million, four hundred seventy-six thousand, seven hundred fifty-two".