131242342 has 32 divisors (see below), whose sum is σ = 253912320. Its totient is φ = 49368480.

The previous prime is 131242277. The next prime is 131242351. The reversal of 131242342 is 243242131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10228 + ... + 19159.

It is an arithmetic number, because the mean of its divisors is an integer number (7934760).

Almost surely, 2^131242342 is an apocalyptic number.

131242342 is a deficient number, since it is larger than the sum of its proper divisors (122669978).

131242342 is a wasteful number, since it uses less digits than its factorization.

131242342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29436.

The product of its digits is 1152, while the sum is 22.

The square root of 131242342 is about 11456.1050099936. The cubic root of 131242342 is about 508.1882943253.

Adding to 131242342 its reverse (243242131), we get a palindrome (374484473).

The spelling of 131242342 in words is "one hundred thirty-one million, two hundred forty-two thousand, three hundred forty-two".