12010020240 has 80 divisors (see below), whose sum is σ = 37246205376. Its totient is φ = 3201369600.

The previous prime is 12010020233. The next prime is 12010020283. The reversal of 12010020240 is 4202001021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 677895 + ... + 695385.

Almost surely, 2^12010020240 is an apocalyptic number.

12010020240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12010020240 is an abundant number, since it is smaller than the sum of its proper divisors (25236185136).

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

12010020240 is a wasteful number, since it uses less digits than its factorization.

12010020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20368 (or 20362 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12010020240 its reverse (4202001021), we get a palindrome (16212021261).

The spelling of 12010020240 in words is "twelve billion, ten million, twenty thousand, two hundred forty".