131023101 has 32 divisors (see below), whose sum is σ = 195090048. Its totient is φ = 77552640.

The previous prime is 131023091. The next prime is 131023103. The reversal of 131023101 is 101320131.

It is not a de Polignac number, because 131023101 - 2¹⁵ = 130990333 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131023103) 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 31 ways as a sum of consecutive naturals, for example, 329835 + ... + 330231.

It is an arithmetic number, because the mean of its divisors is an integer number (6096564).

Almost surely, 2^131023101 is an apocalyptic number.

131023101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131023101 is a deficient number, since it is larger than the sum of its proper divisors (64066947).

131023101 is a wasteful number, since it uses less digits than its factorization.

131023101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

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

The square root of 131023101 is about 11446.5322696439. The cubic root of 131023101 is about 507.9051595637.

Adding to 131023101 its reverse (101320131), we get a palindrome (232343232).

The spelling of 131023101 in words is "one hundred thirty-one million, twenty-three thousand, one hundred one".