101543245321 has 16 divisors (see below), whose sum is σ = 118438528000. Its totient is φ = 87021817344.

The previous prime is 101543245313. The next prime is 101543245333. The reversal of 101543245321 is 123542345101.

It is not a de Polignac number, because 101543245321 - 2³ = 101543245313 is a prime.

It is a super-2 number, since 2×101543245321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101543245421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2216776 + ... + 2262118.

It is an arithmetic number, because the mean of its divisors is an integer number (7402408000).

Almost surely, 2^101543245321 is an apocalyptic number.

It is an amenable number.

101543245321 is a deficient number, since it is larger than the sum of its proper divisors (16895282679).

101543245321 is an frugal number, since it uses more digits than its factorization.

101543245321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51893 (or 51879 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 101543245321 in words is "one hundred one billion, five hundred forty-three million, two hundred forty-five thousand, three hundred twenty-one".