101000556100 has 18 divisors (see below), whose sum is σ = 219171206954. Its totient is φ = 40400222400.

The previous prime is 101000556071. The next prime is 101000556119. The reversal of 101000556100 is 1655000101.

It can be written as a sum of positive squares in 3 ways, for example, as 3001505796 + 97999050304 = 54786^2 + 313048^2 .

It is a super-2 number, since 2×101000556100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505002681 + ... + 505002880.

Almost surely, 2^101000556100 is an apocalyptic number.

101000556100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101000556100 is an abundant number, since it is smaller than the sum of its proper divisors (118170650854).

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

101000556100 is a wasteful number, since it uses less digits than its factorization.

101000556100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010005575 (or 1010005568 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 101000556100 its reverse (1655000101), we get a palindrome (102655556201).

The spelling of 101000556100 in words is "one hundred one billion, five hundred fifty-six thousand, one hundred".