12120881934 has 32 divisors (see below), whose sum is σ = 28660216320. Its totient is φ = 3343691232.

The previous prime is 12120881933. The next prime is 12120881953. The reversal of 12120881934 is 43918802121.

It is a junction number, because it is equal to n+sod(n) for n = 12120881892 and 12120881901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120881933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4974514 + ... + 4976949.

It is an arithmetic number, because the mean of its divisors is an integer number (895631760).

Almost surely, 2^12120881934 is an apocalyptic number.

12120881934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12120881934 is an abundant number, since it is smaller than the sum of its proper divisors (16539334386).

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

12120881934 is a wasteful number, since it uses less digits than its factorization.

12120881934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9951504.

The product of its (nonzero) digits is 27648, while the sum is 39.

The spelling of 12120881934 in words is "twelve billion, one hundred twenty million, eight hundred eighty-one thousand, nine hundred thirty-four".