101055551100 has 144 divisors (see below), whose sum is σ = 334286937600. Its totient is φ = 23089432320.

The previous prime is 101055551039. The next prime is 101055551131. The reversal of 101055551100 is 1155550101.

It is a super-2 number, since 2×101055551100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6458086 + ... + 6473714.

Almost surely, 2^101055551100 is an apocalyptic number.

101055551100 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 101055551100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167143468800).

101055551100 is an abundant number, since it is smaller than the sum of its proper divisors (233231386500).

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

101055551100 is a wasteful number, since it uses less digits than its factorization.

101055551100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18732 (or 18725 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 24.

Subtracting from 101055551100 its reverse (1155550101), we obtain a palindrome (99900000999).

The spelling of 101055551100 in words is "one hundred one billion, fifty-five million, five hundred fifty-one thousand, one hundred".