131011142 has 4 divisors (see below), whose sum is σ = 196516716. Its totient is φ = 65505570.

The previous prime is 131011123. The next prime is 131011169. The reversal of 131011142 is 241110131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241110131 = 239 ⋅1008829.

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, 32752784 + ... + 32752787.

It is an arithmetic number, because the mean of its divisors is an integer number (49129179).

Almost surely, 2^131011142 is an apocalyptic number.

131011142 is a deficient number, since it is larger than the sum of its proper divisors (65505574).

131011142 is an equidigital number, since it uses as much as digits as its factorization.

131011142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65505573.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 131011142 is about 11446.0098724403. The cubic root of 131011142 is about 507.8897062516.

Adding to 131011142 its reverse (241110131), we get a palindrome (372121273).

The spelling of 131011142 in words is "one hundred thirty-one million, eleven thousand, one hundred forty-two".