101020320009 has 24 divisors (see below), whose sum is σ = 167636831232. Its totient is φ = 57423660480.

The previous prime is 101020319947. The next prime is 101020320013. The reversal of 101020320009 is 900023020101.

It is a happy number.

It is not a de Polignac number, because 101020320009 - 2¹⁶ = 101020254473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101020319973 and 101020320000.

It is not an unprimeable number, because it can be changed into a prime (101020320059) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4185604 + ... + 4209669.

It is an arithmetic number, because the mean of its divisors is an integer number (6984867968).

Almost surely, 2^101020320009 is an apocalyptic number.

It is an amenable number.

101020320009 is a deficient number, since it is larger than the sum of its proper divisors (66616511223).

101020320009 is a wasteful number, since it uses less digits than its factorization.

101020320009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8395477 (or 8395474 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The spelling of 101020320009 in words is "one hundred one billion, twenty million, three hundred twenty thousand, nine".