101020021010 has 8 divisors (see below), whose sum is σ = 181836037836. Its totient is φ = 40408008400.

The previous prime is 101020020979. The next prime is 101020021019. The reversal of 101020021010 is 10120020101.

It can be written as a sum of positive squares in 2 ways, for example, as 100932654601 + 87366409 = 317699^2 + 9347^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101020021019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051001041 + ... + 5051001060.

Almost surely, 2^101020021010 is an apocalyptic number.

101020021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101020021010 is a deficient number, since it is larger than the sum of its proper divisors (80816016826).

101020021010 is a wasteful number, since it uses less digits than its factorization.

101020021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10102002108.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 101020021010 its reverse (10120020101), we get a palindrome (111140041111).

Subtracting from 101020021010 its reverse (10120020101), we obtain a palindrome (90900000909).

The spelling of 101020021010 in words is "one hundred one billion, twenty million, twenty-one thousand, ten".