101131230 has 64 divisors (see below), whose sum is σ = 256048128. Its totient is φ = 25512960.

The previous prime is 101131201. The next prime is 101131237. The reversal of 101131230 is 32131101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101131237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66175 + ... + 67685.

It is an arithmetic number, because the mean of its divisors is an integer number (4000752).

Almost surely, 2^101131230 is an apocalyptic number.

101131230 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 101131230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128024064).

101131230 is an abundant number, since it is smaller than the sum of its proper divisors (154916898).

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

101131230 is a wasteful number, since it uses less digits than its factorization.

101131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 101131230 is about 10056.4024382480. The cubic root of 101131230 is about 465.9025596460.

Adding to 101131230 its reverse (32131101), we get a palindrome (133262331).

The spelling of 101131230 in words is "one hundred one million, one hundred thirty-one thousand, two hundred thirty".