100520731610 has 32 divisors (see below), whose sum is σ = 200121948432. Its totient is φ = 36112227840.

The previous prime is 100520731603. The next prime is 100520731627. The reversal of 100520731610 is 16137025001.

It can be written as a sum of positive squares in 8 ways, for example, as 47331918481 + 53188813129 = 217559^2 + 230627^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 100520731610.

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 15 ways as a sum of consecutive naturals, for example, 10444331 + ... + 10453950.

Almost surely, 2^100520731610 is an apocalyptic number.

100520731610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100520731610 is a deficient number, since it is larger than the sum of its proper divisors (99601216822).

100520731610 is a wasteful number, since it uses less digits than its factorization.

100520731610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20898338.

The product of its (nonzero) digits is 1260, while the sum is 26.

Adding to 100520731610 its reverse (16137025001), we get a palindrome (116657756611).

The spelling of 100520731610 in words is "one hundred billion, five hundred twenty million, seven hundred thirty-one thousand, six hundred ten".