102231313020 has 144 divisors (see below), whose sum is σ = 320514606048. Its totient is φ = 26355663360.

The previous prime is 102231312977. The next prime is 102231313027. The reversal of 102231313020 is 20313132201.

102231313020 is a `hidden beast` number, since 10 + 223 + 131 + 302 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102231312984 and 102231313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102231313027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 996735 + ... + 1094505.

Almost surely, 2^102231313020 is an apocalyptic number.

102231313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102231313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160257303024).

102231313020 is an abundant number, since it is smaller than the sum of its proper divisors (218283293028).

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

102231313020 is a wasteful number, since it uses less digits than its factorization.

102231313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97980 (or 97975 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 102231313020 its reverse (20313132201), we get a palindrome (122544445221).

The spelling of 102231313020 in words is "one hundred two billion, two hundred thirty-one million, three hundred thirteen thousand, twenty".