1021131030100 has 36 divisors (see below), whose sum is σ = 2229968091484. Its totient is φ = 405850798080.

The previous prime is 1021131030097. The next prime is 1021131030163. The reversal of 1021131030100 is 10301311201.

It can be written as a sum of positive squares in 6 ways, for example, as 15450987204 + 1005680042896 = 124302^2 + 1002836^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32504397 + ... + 32535796.

Almost surely, 2^{1021131030100} is an apocalyptic number.

1021131030100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1021131030100 is an abundant number, since it is smaller than the sum of its proper divisors (1208837061384).

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

1021131030100 is a wasteful number, since it uses less digits than its factorization.

1021131030100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65040364 (or 65040357 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1021131030100 its reverse (10301311201), we get a palindrome (1031432341301).

The spelling of 1021131030100 in words is "one trillion, twenty-one billion, one hundred thirty-one million, thirty thousand, one hundred".