131421112 has 8 divisors (see below), whose sum is σ = 246414600. Its totient is φ = 65710552.

The previous prime is 131421109. The next prime is 131421197. The reversal of 131421112 is 211124131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8213812 + ... + 8213827.

It is an arithmetic number, because the mean of its divisors is an integer number (30801825).

Almost surely, 2^131421112 is an apocalyptic number.

It is an amenable number.

131421112 is a deficient number, since it is larger than the sum of its proper divisors (114993488).

131421112 is a wasteful number, since it uses less digits than its factorization.

131421112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16427645 (or 16427641 counting only the distinct ones).

The product of its digits is 48, while the sum is 16.

The square root of 131421112 is about 11463.9047448939. The cubic root of 131421112 is about 508.4189302661.

Adding to 131421112 its reverse (211124131), we get a palindrome (342545243).

The spelling of 131421112 in words is "one hundred thirty-one million, four hundred twenty-one thousand, one hundred twelve".