12012302140 has 48 divisors (see below), whose sum is σ = 25344262944. Its totient is φ = 4782412800.

The previous prime is 12012302101. The next prime is 12012302147. The reversal of 12012302140 is 4120321021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012302147) 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, 8110200 + ... + 8111680.

It is an arithmetic number, because the mean of its divisors is an integer number (528005478).

Almost surely, 2^12012302140 is an apocalyptic number.

12012302140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012302140 is an abundant number, since it is smaller than the sum of its proper divisors (13331960804).

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

12012302140 is a wasteful number, since it uses less digits than its factorization.

12012302140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3118 (or 3116 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12012302140 its reverse (4120321021), we get a palindrome (16132623161).

The spelling of 12012302140 in words is "twelve billion, twelve million, three hundred two thousand, one hundred forty".