131121110 has 8 divisors (see below), whose sum is σ = 236018016. Its totient is φ = 52448440.

The previous prime is 131121031. The next prime is 131121113. The reversal of 131121110 is 11121131.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 131121091 and 131121100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131121113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6556046 + ... + 6556065.

It is an arithmetic number, because the mean of its divisors is an integer number (29502252).

Almost surely, 2^131121110 is an apocalyptic number.

131121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121110 is a deficient number, since it is larger than the sum of its proper divisors (104896906).

131121110 is a wasteful number, since it uses less digits than its factorization.

131121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13112118.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 131121110 is about 11450.8126349181. The cubic root of 131121110 is about 508.0317704932.

Adding to 131121110 its reverse (11121131), we get a palindrome (142242241).

The spelling of 131121110 in words is "one hundred thirty-one million, one hundred twenty-one thousand, one hundred ten".