12101301840 has 40 divisors (see below), whose sum is σ = 37514036448. Its totient is φ = 3227013760.

The previous prime is 12101301767. The next prime is 12101301847. The reversal of 12101301840 is 4810310121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101301847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25210806 + ... + 25211285.

Almost surely, 2^12101301840 is an apocalyptic number.

12101301840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12101301840 is an abundant number, since it is smaller than the sum of its proper divisors (25412734608).

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

12101301840 is a wasteful number, since it uses less digits than its factorization.

12101301840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50422107 (or 50422101 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 12101301840 its reverse (4810310121), we get a palindrome (16911611961).

The spelling of 12101301840 in words is "twelve billion, one hundred one million, three hundred one thousand, eight hundred forty".