131102031121 has 4 divisors (see below), whose sum is σ = 131113218544. Its totient is φ = 131090843700.

The previous prime is 131102031083. The next prime is 131102031161. The reversal of 131102031121 is 121130201131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121130201131 = 56597 ⋅2140223.

It is a cyclic number.

It is not a de Polignac number, because 131102031121 - 2¹⁵ = 131101998353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131102031095 and 131102031104.

It is not an unprimeable number, because it can be changed into a prime (131102031161) 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 3 ways as a sum of consecutive naturals, for example, 5576115 + ... + 5599576.

It is an arithmetic number, because the mean of its divisors is an integer number (32778304636).

Almost surely, 2^131102031121 is an apocalyptic number.

It is an amenable number.

131102031121 is a deficient number, since it is larger than the sum of its proper divisors (11187423).

131102031121 is a wasteful number, since it uses less digits than its factorization.

131102031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11187422.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131102031121 its reverse (121130201131), we get a palindrome (252232232252).

The spelling of 131102031121 in words is "one hundred thirty-one billion, one hundred two million, thirty-one thousand, one hundred twenty-one".