101143320521 has 8 divisors (see below), whose sum is σ = 108731902080. Its totient is φ = 93781263888.

The previous prime is 101143320497. The next prime is 101143320541. The reversal of 101143320521 is 125023341101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101143320521 - 2²⁶ = 101076211657 is a prime.

It is a super-2 number, since 2×101143320521² (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 (101143320541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56630306 + ... + 56632091.

It is an arithmetic number, because the mean of its divisors is an integer number (13591487760).

Almost surely, 2^101143320521 is an apocalyptic number.

It is an amenable number.

101143320521 is a deficient number, since it is larger than the sum of its proper divisors (7588581559).

101143320521 is a wasteful number, since it uses less digits than its factorization.

101143320521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113262463.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 101143320521 its reverse (125023341101), we get a palindrome (226166661622).

The spelling of 101143320521 in words is "one hundred one billion, one hundred forty-three million, three hundred twenty thousand, five hundred twenty-one".