2021430331144 has 16 divisors (see below), whose sum is σ = 4331636424000. Its totient is φ = 866327284752.

The previous prime is 2021430331139. The next prime is 2021430331181. The reversal of 2021430331144 is 4411330341202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18048485044 + ... + 18048485155.

It is an arithmetic number, because the mean of its divisors is an integer number (270727276500).

Almost surely, 2^{2021430331144} is an apocalyptic number.

It is an amenable number.

2021430331144 is an abundant number, since it is smaller than the sum of its proper divisors (2310206092856).

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

2021430331144 is a wasteful number, since it uses less digits than its factorization.

2021430331144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36096970212 (or 36096970208 counting only the distinct ones).

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

Adding to 2021430331144 its reverse (4411330341202), we get a palindrome (6432760672346).

The spelling of 2021430331144 in words is "two trillion, twenty-one billion, four hundred thirty million, three hundred thirty-one thousand, one hundred forty-four".