101031231330 has 96 divisors (see below), whose sum is σ = 264739750704. Its totient is φ = 26731289088.

The previous prime is 101031231271. The next prime is 101031231347. The reversal of 101031231330 is 33132130101.

It is a happy number.

101031231330 is a `hidden beast` number, since 1 + 0 + 10 + 312 + 313 + 30 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 52845274161 + 48185957169 = 229881^2 + 219513^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 6605652 + ... + 6620928.

Almost surely, 2^101031231330 is an apocalyptic number.

101031231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101031231330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132369875352).

101031231330 is an abundant number, since it is smaller than the sum of its proper divisors (163708519374).

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

101031231330 is a wasteful number, since it uses less digits than its factorization.

101031231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15860 (or 15857 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 101031231330 its reverse (33132130101), we get a palindrome (134163361431).

The spelling of 101031231330 in words is "one hundred one billion, thirty-one million, two hundred thirty-one thousand, three hundred thirty".