1021100005136 has 10 divisors (see below), whose sum is σ = 1978381259982. Its totient is φ = 510550002560.

The previous prime is 1021100005099. The next prime is 1021100005151. The reversal of 1021100005136 is 6315000011201.

It can be written as a sum of positive squares in only one way, i.e., 974721798400 + 46378206736 = 987280^2 + 215356^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31909375145 + ... + 31909375176.

Almost surely, 2^{1021100005136} is an apocalyptic number.

1021100005136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1021100005136 is a deficient number, since it is larger than the sum of its proper divisors (957281254846).

1021100005136 is an equidigital number, since it uses as much as digits as its factorization.

1021100005136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63818750329 (or 63818750323 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 1021100005136 its reverse (6315000011201), we get a palindrome (7336100016337).

The spelling of 1021100005136 in words is "one trillion, twenty-one billion, one hundred million, five thousand, one hundred thirty-six".