12405771330 has 64 divisors (see below), whose sum is σ = 30486284928. Its totient is φ = 3229148160.

The previous prime is 12405771311. The next prime is 12405771337. The reversal of 12405771330 is 3317750421.

It is a junction number, because it is equal to n+sod(n) for n = 12405771291 and 12405771300.

It is not an unprimeable number, because it can be changed into a prime (12405771337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3296650 + ... + 3300410.

It is an arithmetic number, because the mean of its divisors is an integer number (476348202).

Almost surely, 2^12405771330 is an apocalyptic number.

12405771330 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 12405771330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15243142464).

12405771330 is an abundant number, since it is smaller than the sum of its proper divisors (18080513598).

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

12405771330 is a wasteful number, since it uses less digits than its factorization.

12405771330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6371.

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 12405771330 in words is "twelve billion, four hundred five million, seven hundred seventy-one thousand, three hundred thirty".