102021323010 has 64 divisors (see below), whose sum is σ = 248303128320. Its totient is φ = 26822430720.

The previous prime is 102021322993. The next prime is 102021323017. The reversal of 102021323010 is 10323120201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102021323017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6652131 + ... + 6667449.

It is an arithmetic number, because the mean of its divisors is an integer number (3879736380).

Almost surely, 2^102021323010 is an apocalyptic number.

102021323010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102021323010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124151564160).

102021323010 is an abundant number, since it is smaller than the sum of its proper divisors (146281805310).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102021323010 is a wasteful number, since it uses less digits than its factorization.

102021323010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18443.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 102021323010 its reverse (10323120201), we get a palindrome (112344443211).

The spelling of 102021323010 in words is "one hundred two billion, twenty-one million, three hundred twenty-three thousand, ten".