10131021500 has 48 divisors (see below), whose sum is σ = 22392822816. Its totient is φ = 4003568000.

The previous prime is 10131021499. The next prime is 10131021539. The reversal of 10131021500 is 512013101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80561 + ... + 163560.

It is an arithmetic number, because the mean of its divisors is an integer number (466517142).

Almost surely, 2^10131021500 is an apocalyptic number.

10131021500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10131021500 is an abundant number, since it is smaller than the sum of its proper divisors (12261801316).

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

10131021500 is a wasteful number, since it uses less digits than its factorization.

10131021500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244223 (or 244211 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 14.

Adding to 10131021500 its reverse (512013101), we get a palindrome (10643034601).

The spelling of 10131021500 in words is "ten billion, one hundred thirty-one million, twenty-one thousand, five hundred".