12142531658 has 4 divisors (see below), whose sum is σ = 18213797490. Its totient is φ = 6071265828.

The previous prime is 12142531631. The next prime is 12142531691. The reversal of 12142531658 is 85613524121.

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

It can be written as a sum of positive squares in only one way, i.e., 11842445329 + 300086329 = 108823^2 + 17323^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3035632913 + ... + 3035632916.

Almost surely, 2^12142531658 is an apocalyptic number.

12142531658 is a deficient number, since it is larger than the sum of its proper divisors (6071265832).

12142531658 is an equidigital number, since it uses as much as digits as its factorization.

12142531658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071265831.

The product of its digits is 57600, while the sum is 38.

The spelling of 12142531658 in words is "twelve billion, one hundred forty-two million, five hundred thirty-one thousand, six hundred fifty-eight".