12101343040 has 28 divisors (see below), whose sum is σ = 28816323876. Its totient is φ = 4840537088.

The previous prime is 12101343017. The next prime is 12101343041. The reversal of 12101343040 is 4034310121.

It can be written as a sum of positive squares in 2 ways, for example, as 5509202176 + 6592140864 = 74224^2 + 81192^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12101342999 and 12101343017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101343041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18908029 + ... + 18908668.

Almost surely, 2^12101343040 is an apocalyptic number.

12101343040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101343040 is an abundant number, since it is smaller than the sum of its proper divisors (16714980836).

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

12101343040 is an equidigital number, since it uses as much as digits as its factorization.

12101343040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37816714 (or 37816704 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12101343040 its reverse (4034310121), we get a palindrome (16135653161).

The spelling of 12101343040 in words is "twelve billion, one hundred one million, three hundred forty-three thousand, forty".