1021234042 has 12 divisors (see below), whose sum is σ = 1547834670. Its totient is φ = 505343616.

The previous prime is 1021233991. The next prime is 1021234057. The reversal of 1021234042 is 2404321201.

It can be written as a sum of positive squares in 3 ways, for example, as 976625001 + 44609041 = 31251^2 + 6679^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8317 + ... + 45952.

Almost surely, 2^1021234042 is an apocalyptic number.

1021234042 is a deficient number, since it is larger than the sum of its proper divisors (526600628).

1021234042 is an frugal number, since it uses more digits than its factorization.

1021234042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54465 (or 54368 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1021234042 is about 31956.7526823362. The cubic root of 1021234042 is about 1007.0284984738.

Adding to 1021234042 its reverse (2404321201), we get a palindrome (3425555243).

The spelling of 1021234042 in words is "one billion, twenty-one million, two hundred thirty-four thousand, forty-two".