1031243002 has 4 divisors (see below), whose sum is σ = 1546864506. Its totient is φ = 515621500.

The previous prime is 1031242991. The next prime is 1031243009. The reversal of 1031243002 is 2003421301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 574608841 + 456634161 = 23971^2 + 21369^2 .

It is not an unprimeable number, because it can be changed into a prime (1031243009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257810749 + ... + 257810752.

Almost surely, 2^1031243002 is an apocalyptic number.

1031243002 is a deficient number, since it is larger than the sum of its proper divisors (515621504).

1031243002 is an equidigital number, since it uses as much as digits as its factorization.

1031243002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515621503.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1031243002 is about 32112.9724877658. The cubic root of 1031243002 is about 1010.3077198496.

Adding to 1031243002 its reverse (2003421301), we get a palindrome (3034664303).

The spelling of 1031243002 in words is "one billion, thirty-one million, two hundred forty-three thousand, two".