102531053540 has 96 divisors (see below), whose sum is σ = 229561952256. Its totient is φ = 38406251520.

The previous prime is 102531053533. The next prime is 102531053557. The reversal of 102531053540 is 45350135201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2377409 + ... + 2420151.

It is an arithmetic number, because the mean of its divisors is an integer number (2391270336).

Almost surely, 2^102531053540 is an apocalyptic number.

102531053540 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 102531053540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114780976128).

102531053540 is an abundant number, since it is smaller than the sum of its proper divisors (127030898716).

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

102531053540 is a wasteful number, since it uses less digits than its factorization.

102531053540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42909 (or 42907 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 102531053540 its reverse (45350135201), we get a palindrome (147881188741).

The spelling of 102531053540 in words is "one hundred two billion, five hundred thirty-one million, fifty-three thousand, five hundred forty".