102231004440 has 128 divisors (see below), whose sum is σ = 328677212160. Its totient is φ = 25371523584.

The previous prime is 102231004433. The next prime is 102231004511. The reversal of 102231004440 is 44400132201.

It is a super-2 number, since 2×102231004440² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398424 + ... + 602663.

It is an arithmetic number, because the mean of its divisors is an integer number (2567790720).

Almost surely, 2^102231004440 is an apocalyptic number.

102231004440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102231004440 is an abundant number, since it is smaller than the sum of its proper divisors (226446207720).

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

102231004440 is a wasteful number, since it uses less digits than its factorization.

102231004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001161 (or 1001157 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 102231004440 its reverse (44400132201), we get a palindrome (146631136641).

The spelling of 102231004440 in words is "one hundred two billion, two hundred thirty-one million, four thousand, four hundred forty".