101331012100 has 72 divisors (see below), whose sum is σ = 225868543488. Its totient is φ = 39435475200.

The previous prime is 101331012067. The next prime is 101331012103. The reversal of 101331012100 is 1210133101.

It is not an unprimeable number, because it can be changed into a prime (101331012103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1471029 + ... + 1538371.

It is an arithmetic number, because the mean of its divisors is an integer number (3137063104).

Almost surely, 2^101331012100 is an apocalyptic number.

101331012100 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 101331012100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112934271744).

101331012100 is an abundant number, since it is smaller than the sum of its proper divisors (124537531388).

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

101331012100 is a wasteful number, since it uses less digits than its factorization.

101331012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67765 (or 67758 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 101331012100 its reverse (1210133101), we get a palindrome (102541145201).

The spelling of 101331012100 in words is "one hundred one billion, three hundred thirty-one million, twelve thousand, one hundred".