2012011304431 has 16 divisors (see below), whose sum is σ = 2143685723904. Its totient is φ = 1881827265024.

The previous prime is 2012011304383. The next prime is 2012011304453. The reversal of 2012011304431 is 1344031102102.

It is not a de Polignac number, because 2012011304431 - 2¹¹ = 2012011302383 is a prime.

It is a super-2 number, since 2×2012011304431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012011314431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6142945 + ... + 6462181.

It is an arithmetic number, because the mean of its divisors is an integer number (133980357744).

Almost surely, 2^{2012011304431} is an apocalyptic number.

2012011304431 is a deficient number, since it is larger than the sum of its proper divisors (131674419473).

2012011304431 is a wasteful number, since it uses less digits than its factorization.

2012011304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321570.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2012011304431 its reverse (1344031102102), we get a palindrome (3356042406533).

The spelling of 2012011304431 in words is "two trillion, twelve billion, eleven million, three hundred four thousand, four hundred thirty-one".