131102012 has 24 divisors (see below), whose sum is σ = 238761600. Its totient is φ = 62936496.

The previous prime is 131102003. The next prime is 131102017. The reversal of 131102012 is 210201131.

It is a junction number, because it is equal to n+sod(n) for n = 131101984 and 131102002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131102017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3689 + ... + 16607.

It is an arithmetic number, because the mean of its divisors is an integer number (9948400).

Almost surely, 2^131102012 is an apocalyptic number.

It is an amenable number.

131102012 is a deficient number, since it is larger than the sum of its proper divisors (107659588).

131102012 is a wasteful number, since it uses less digits than its factorization.

131102012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13025 (or 13023 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 131102012 is about 11449.9786899365. The cubic root of 131102012 is about 508.0071040815.

Adding to 131102012 its reverse (210201131), we get a palindrome (341303143).

The spelling of 131102012 in words is "one hundred thirty-one million, one hundred two thousand, twelve".