1021231130144 has 48 divisors (see below), whose sum is σ = 2013004569240. Its totient is φ = 509992243200.

The previous prime is 1021231130081. The next prime is 1021231130159. The reversal of 1021231130144 is 4410311321201.

It can be written as a sum of positive squares in 4 ways, for example, as 728312041744 + 292919088400 = 853412^2 + 541220^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 188659982 + ... + 188665394.

Almost surely, 2^{1021231130144} is an apocalyptic number.

It is an amenable number.

1021231130144 is a deficient number, since it is larger than the sum of its proper divisors (991773439096).

1021231130144 is a wasteful number, since it uses less digits than its factorization.

1021231130144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11533 (or 11525 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1021231130144 its reverse (4410311321201), we get a palindrome (5431542451345).

The spelling of 1021231130144 in words is "one trillion, twenty-one billion, two hundred thirty-one million, one hundred thirty thousand, one hundred forty-four".