101012021321 has 32 divisors (see below), whose sum is σ = 107759808000. Its totient is φ = 94526629120.

The previous prime is 101012021267. The next prime is 101012021329. The reversal of 101012021321 is 123120210101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101012021321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101012021296 and 101012021305.

It is not an unprimeable number, because it can be changed into a prime (101012021329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99715211 + ... + 99716223.

It is an arithmetic number, because the mean of its divisors is an integer number (3367494000).

Almost surely, 2^101012021321 is an apocalyptic number.

It is an amenable number.

101012021321 is a deficient number, since it is larger than the sum of its proper divisors (6747786679).

101012021321 is a wasteful number, since it uses less digits than its factorization.

101012021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 101012021321 its reverse (123120210101), we get a palindrome (224132231422).

The spelling of 101012021321 in words is "one hundred one billion, twelve million, twenty-one thousand, three hundred twenty-one".