2021131433044 has 6 divisors (see below), whose sum is σ = 3536980007834. Its totient is φ = 1010565716520.

The previous prime is 2021131433033. The next prime is 2021131433059. The reversal of 2021131433044 is 4403341311202.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1803380410000 + 217751023044 = 1342900^2 + 466638^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252641429127 + ... + 252641429134.

Almost surely, 2^{2021131433044} is an apocalyptic number.

It is an amenable number.

2021131433044 is a deficient number, since it is larger than the sum of its proper divisors (1515848574790).

2021131433044 is a wasteful number, since it uses less digits than its factorization.

2021131433044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505282858265 (or 505282858263 counting only the distinct ones).

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

Adding to 2021131433044 its reverse (4403341311202), we get a palindrome (6424472744246).

The spelling of 2021131433044 in words is "two trillion, twenty-one billion, one hundred thirty-one million, four hundred thirty-three thousand, forty-four".