1021052138896 has 10 divisors (see below), whose sum is σ = 1978288519142. Its totient is φ = 510526069440.

The previous prime is 1021052138851. The next prime is 1021052138903. The reversal of 1021052138896 is 6988312501201.

It can be written as a sum of positive squares in only one way, i.e., 760070112400 + 260982026496 = 871820^2 + 510864^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 31907879325 + ... + 31907879356.

Almost surely, 2^{1021052138896} is an apocalyptic number.

1021052138896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1021052138896 is a deficient number, since it is larger than the sum of its proper divisors (957236380246).

1021052138896 is an equidigital number, since it uses as much as digits as its factorization.

1021052138896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63815758689 (or 63815758683 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 46.

The spelling of 1021052138896 in words is "one trillion, twenty-one billion, fifty-two million, one hundred thirty-eight thousand, eight hundred ninety-six".