131031042 has 8 divisors (see below), whose sum is σ = 262062096. Its totient is φ = 43677012.

The previous prime is 131031031. The next prime is 131031067. The reversal of 131031042 is 240130131.

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

131031042 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10919248 + ... + 10919259.

It is an arithmetic number, because the mean of its divisors is an integer number (32757762).

Almost surely, 2^131031042 is an apocalyptic number.

131031042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131031042 is a wasteful number, since it uses less digits than its factorization.

131031042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21838512.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131031042 is about 11446.8791380009. The cubic root of 131031042 is about 507.9154203329.

Adding to 131031042 its reverse (240130131), we get a palindrome (371161173).

The spelling of 131031042 in words is "one hundred thirty-one million, thirty-one thousand, forty-two".