142130531243 has 4 divisors (see below), whose sum is σ = 145597129608. Its totient is φ = 138663932880.

The previous prime is 142130531209. The next prime is 142130531311. The reversal of 142130531243 is 342135031241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142130531243 - 2¹⁰ = 142130530219 is a prime.

It is a super-2 number, since 2×142130531243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142130533243) 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, 1733299121 + ... + 1733299202.

It is an arithmetic number, because the mean of its divisors is an integer number (36399282402).

Almost surely, 2^142130531243 is an apocalyptic number.

142130531243 is a deficient number, since it is larger than the sum of its proper divisors (3466598365).

142130531243 is an equidigital number, since it uses as much as digits as its factorization.

142130531243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466598364.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 142130531243 its reverse (342135031241), we get a palindrome (484265562484).

The spelling of 142130531243 in words is "one hundred forty-two billion, one hundred thirty million, five hundred thirty-one thousand, two hundred forty-three".