101240034021 has 12 divisors (see below), whose sum is σ = 167126405472. Its totient is φ = 57851447976.

The previous prime is 101240034001. The next prime is 101240034037. The reversal of 101240034021 is 120430042101.

It is not a de Polignac number, because 101240034021 - 2¹⁰ = 101240032997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101240033985 and 101240034003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101240034001) 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 11 ways as a sum of consecutive naturals, for example, 803492271 + ... + 803492396.

It is an arithmetic number, because the mean of its divisors is an integer number (13927200456).

Almost surely, 2^101240034021 is an apocalyptic number.

It is an amenable number.

101240034021 is a deficient number, since it is larger than the sum of its proper divisors (65886371451).

101240034021 is a wasteful number, since it uses less digits than its factorization.

101240034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606984680 (or 1606984677 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 101240034021 its reverse (120430042101), we get a palindrome (221670076122).

The spelling of 101240034021 in words is "one hundred one billion, two hundred forty million, thirty-four thousand, twenty-one".