101031130 has 32 divisors (see below), whose sum is σ = 184586688. Its totient is φ = 39811200.

The previous prime is 101031107. The next prime is 101031131. The reversal of 101031130 is 31130101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (101031131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 305065 + ... + 305395.

It is an arithmetic number, because the mean of its divisors is an integer number (5768334).

Almost surely, 2^101031130 is an apocalyptic number.

101031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101031130 is a deficient number, since it is larger than the sum of its proper divisors (83555558).

101031130 is a wasteful number, since it uses less digits than its factorization.

101031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 101031130 is about 10051.4242771858. The cubic root of 101031130 is about 465.7487916431.

Adding to 101031130 its reverse (31130101), we get a palindrome (132161231).

The spelling of 101031130 in words is "one hundred one million, thirty-one thousand, one hundred thirty".