131102121 has 8 divisors (see below), whose sum is σ = 175690944. Its totient is φ = 86957360.

The previous prime is 131102089. The next prime is 131102177. The reversal of 131102121 is 121201131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131102121 - 2⁵ = 131102089 is a prime.

It is a super-2 number, since 2×131102121² = 34375532261397282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131102097 and 131102106.

It is not an unprimeable number, because it can be changed into a prime (131102021) 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, 110325 + ... + 111506.

It is an arithmetic number, because the mean of its divisors is an integer number (21961368).

Almost surely, 2^131102121 is an apocalyptic number.

It is an amenable number.

131102121 is a deficient number, since it is larger than the sum of its proper divisors (44588823).

131102121 is a wasteful number, since it uses less digits than its factorization.

131102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222031.

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

The square root of 131102121 is about 11449.9834497697. The cubic root of 131102121 is about 508.0072448695.

Adding to 131102121 its reverse (121201131), we get a palindrome (252303252).

The spelling of 131102121 in words is "one hundred thirty-one million, one hundred two thousand, one hundred twenty-one".