1021231242 has 48 divisors (see below), whose sum is σ = 2387066760. Its totient is φ = 314336256.

The previous prime is 1021231217. The next prime is 1021231273. The reversal of 1021231242 is 2421321201.

It is a happy number.

1021231242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1011812481 + 9418761 = 31809^2 + 3069^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15267 + ... + 47702.

Almost surely, 2^1021231242 is an apocalyptic number.

1021231242 is an abundant number, since it is smaller than the sum of its proper divisors (1365835518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1021231242 is a wasteful number, since it uses less digits than its factorization.

1021231242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63047 (or 63044 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1021231242 is about 31956.7088730989. The cubic root of 1021231242 is about 1007.0275781224.

Adding to 1021231242 its reverse (2421321201), we get a palindrome (3442552443).

The spelling of 1021231242 in words is "one billion, twenty-one million, two hundred thirty-one thousand, two hundred forty-two".