12020139246 has 32 divisors (see below), whose sum is σ = 24617324160. Its totient is φ = 3910675104.

The previous prime is 12020139163. The next prime is 12020139259. The reversal of 12020139246 is 64293102021.

It is a congruent number.

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, 352381 + ... + 384983.

It is an arithmetic number, because the mean of its divisors is an integer number (769291380).

Almost surely, 2^12020139246 is an apocalyptic number.

12020139246 is an abundant number, since it is smaller than the sum of its proper divisors (12597184914).

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

12020139246 is a wasteful number, since it uses less digits than its factorization.

12020139246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34080.

The product of its (nonzero) digits is 5184, while the sum is 30.

The spelling of 12020139246 in words is "twelve billion, twenty million, one hundred thirty-nine thousand, two hundred forty-six".