12013212131020 has 24 divisors (see below), whose sum is σ = 25573331032704. Its totient is φ = 4739459031936.

The previous prime is 12013212130987. The next prime is 12013212131021. The reversal of 12013212131020 is 2013121231021.

It is not an unprimeable number, because it can be changed into a prime (12013212131021) 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, 4114112284 + ... + 4114115203.

It is an arithmetic number, because the mean of its divisors is an integer number (1065555459696).

Almost surely, 2^{12013212131020} is an apocalyptic number.

12013212131020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013212131020 is an abundant number, since it is smaller than the sum of its proper divisors (13560118901684).

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

12013212131020 is a wasteful number, since it uses less digits than its factorization.

12013212131020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8228227569 (or 8228227567 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12013212131020 its reverse (2013121231021), we get a palindrome (14026333362041).

The spelling of 12013212131020 in words is "twelve trillion, thirteen billion, two hundred twelve million, one hundred thirty-one thousand, twenty".