101310030021 has 16 divisors (see below), whose sum is σ = 135867098880. Its totient is φ = 67147416000.

The previous prime is 101310030013. The next prime is 101310030047. The reversal of 101310030021 is 120030013101.

It is not a de Polignac number, because 101310030021 - 2³ = 101310030013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101310029979 and 101310030006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101310030011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324271 + ... + 554771.

It is an arithmetic number, because the mean of its divisors is an integer number (8491693680).

Almost surely, 2^101310030021 is an apocalyptic number.

It is an amenable number.

101310030021 is a deficient number, since it is larger than the sum of its proper divisors (34557068859).

101310030021 is a wasteful number, since it uses less digits than its factorization.

101310030021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231356.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 101310030021 its reverse (120030013101), we get a palindrome (221340043122).

The spelling of 101310030021 in words is "one hundred one billion, three hundred ten million, thirty thousand, twenty-one".