1023140042 has 8 divisors (see below), whose sum is σ = 1535962500. Its totient is φ = 511152544.

The previous prime is 1023140017. The next prime is 1023140051. The reversal of 1023140042 is 2400413201.

It can be written as a sum of positive squares in 2 ways, for example, as 1006729441 + 16410601 = 31729^2 + 4051^2 .

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 1023140042.

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, 205667 + ... + 210582.

Almost surely, 2^1023140042 is an apocalyptic number.

1023140042 is a deficient number, since it is larger than the sum of its proper divisors (512822458).

1023140042 is a wasteful number, since it uses less digits than its factorization.

1023140042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417480.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1023140042 is about 31986.5603339903. The cubic root of 1023140042 is about 1007.6546048558.

Adding to 1023140042 its reverse (2400413201), we get a palindrome (3423553243).

The spelling of 1023140042 in words is "one billion, twenty-three million, one hundred forty thousand, forty-two".