101323212021 has 12 divisors (see below), whose sum is σ = 146392882272. Its totient is φ = 67531670376.

The previous prime is 101323212017. The next prime is 101323212037. The reversal of 101323212021 is 120212323101.

101323212021 is a `hidden beast` number, since 10 + 132 + 321 + 202 + 1 = 666.

It is not a de Polignac number, because 101323212021 - 2² = 101323212017 is a prime.

It is a super-3 number, since 3×101323212021³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101323211985 and 101323212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101323212061) 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, 1390641 + ... + 1461686.

It is an arithmetic number, because the mean of its divisors is an integer number (12199406856).

Almost surely, 2^101323212021 is an apocalyptic number.

It is an amenable number.

101323212021 is a deficient number, since it is larger than the sum of its proper divisors (45069670251).

101323212021 is a wasteful number, since it uses less digits than its factorization.

101323212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2856280 (or 2856277 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 101323212021 its reverse (120212323101), we get a palindrome (221535535122).

The spelling of 101323212021 in words is "one hundred one billion, three hundred twenty-three million, two hundred twelve thousand, twenty-one".