1231030142 has 8 divisors (see below), whose sum is σ = 1876816632. Its totient is φ = 605424600.

The previous prime is 1231030139. The next prime is 1231030183. The reversal of 1231030142 is 2410301321.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1231030142.

It is a congruent 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, 5045084 + ... + 5045327.

It is an arithmetic number, because the mean of its divisors is an integer number (234602079).

Almost surely, 2^1231030142 is an apocalyptic number.

1231030142 is a deficient number, since it is larger than the sum of its proper divisors (645786490).

1231030142 is a wasteful number, since it uses less digits than its factorization.

1231030142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10090474.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1231030142 is about 35086.0391323957. The cubic root of 1231030142 is about 1071.7403018491.

Adding to 1231030142 its reverse (2410301321), we get a palindrome (3641331463).

The spelling of 1231030142 in words is "one billion, two hundred thirty-one million, thirty thousand, one hundred forty-two".