101040135506 has 4 divisors (see below), whose sum is σ = 151560203262. Its totient is φ = 50520067752.

The previous prime is 101040135461. The next prime is 101040135529. The reversal of 101040135506 is 605531040101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 100685001481 + 355134025 = 317309^2 + 18845^2 .

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 as a sum of consecutive naturals, namely, 25260033875 + ... + 25260033878.

Almost surely, 2^101040135506 is an apocalyptic number.

101040135506 is a deficient number, since it is larger than the sum of its proper divisors (50520067756).

101040135506 is an equidigital number, since it uses as much as digits as its factorization.

101040135506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50520067755.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 101040135506 its reverse (605531040101), we get a palindrome (706571175607).

The spelling of 101040135506 in words is "one hundred one billion, forty million, one hundred thirty-five thousand, five hundred six".