1012243142 has 4 divisors (see below), whose sum is σ = 1518364716. Its totient is φ = 506121570.

The previous prime is 1012243123. The next prime is 1012243181. The reversal of 1012243142 is 2413422101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2413422101 = 11321 ⋅213181.

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, 253060784 + ... + 253060787.

It is an arithmetic number, because the mean of its divisors is an integer number (379591179).

Almost surely, 2^1012243142 is an apocalyptic number.

1012243142 is a deficient number, since it is larger than the sum of its proper divisors (506121574).

1012243142 is an equidigital number, since it uses as much as digits as its factorization.

1012243142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506121573.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1012243142 is about 31815.7687633035. The cubic root of 1012243142 is about 1004.0645047523.

Adding to 1012243142 its reverse (2413422101), we get a palindrome (3425665243).

The spelling of 1012243142 in words is "one billion, twelve million, two hundred forty-three thousand, one hundred forty-two".