2012631322420 has 24 divisors (see below), whose sum is σ = 4226555535048. Its totient is φ = 805046860800.

The previous prime is 2012631322409. The next prime is 2012631322459. The reversal of 2012631322420 is 242231362102.

It can be written as a sum of positive squares in 4 ways, for example, as 29795592996 + 1982835729424 = 172614^2 + 1408132^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3675240 + ... + 4187200.

It is an arithmetic number, because the mean of its divisors is an integer number (176106480627).

Almost surely, 2^{2012631322420} is an apocalyptic number.

2012631322420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012631322420 is an abundant number, since it is smaller than the sum of its proper divisors (2213924212628).

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

2012631322420 is a wasteful number, since it uses less digits than its factorization.

2012631322420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708531 (or 708529 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2012631322420 its reverse (242231362102), we get a palindrome (2254862684522).

The spelling of 2012631322420 in words is "two trillion, twelve billion, six hundred thirty-one million, three hundred twenty-two thousand, four hundred twenty".