131102231 has 16 divisors (see below), whose sum is σ = 150123456. Its totient is φ = 113558016.

The previous prime is 131102221. The next prime is 131102263. The reversal of 131102231 is 132201131.

It is not a de Polignac number, because 131102231 - 2¹⁰ = 131101207 is a prime.

It is a super-2 number, since 2×131102231² = 34375589946354722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11711 + ... + 19983.

It is an arithmetic number, because the mean of its divisors is an integer number (9382716).

Almost surely, 2^131102231 is an apocalyptic number.

131102231 is a deficient number, since it is larger than the sum of its proper divisors (19021225).

131102231 is a wasteful number, since it uses less digits than its factorization.

131102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8362.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131102231 is about 11449.9882532691. The cubic root of 131102231 is about 508.0073869490.

Adding to 131102231 its reverse (132201131), we get a palindrome (263303362).

The spelling of 131102231 in words is "one hundred thirty-one million, one hundred two thousand, two hundred thirty-one".