101052100521 has 12 divisors (see below), whose sum is σ = 147722750448. Its totient is φ = 66556403064.

The previous prime is 101052100517. The next prime is 101052100529. The reversal of 101052100521 is 125001250101.

It is not a de Polignac number, because 101052100521 - 2² = 101052100517 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101052100494 and 101052100503.

It is not an unprimeable number, because it can be changed into a prime (101052100529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67637875 + ... + 67639368.

It is an arithmetic number, because the mean of its divisors is an integer number (12310229204).

Almost surely, 2^101052100521 is an apocalyptic number.

It is an amenable number.

101052100521 is a deficient number, since it is larger than the sum of its proper divisors (46670649927).

101052100521 is a wasteful number, since it uses less digits than its factorization.

101052100521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135277332 (or 135277329 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

Adding to 101052100521 its reverse (125001250101), we get a palindrome (226053350622).

The spelling of 101052100521 in words is "one hundred one billion, fifty-two million, one hundred thousand, five hundred twenty-one".