1243042302 has 16 divisors (see below), whose sum is σ = 2486452752. Its totient is φ = 414286080.

The previous prime is 1243042259. The next prime is 1243042313. The reversal of 1243042302 is 2032403421.

It is a super-2 number, since 2×1243042302² = 3090308329122918408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49902 + ... + 70542.

It is an arithmetic number, because the mean of its divisors is an integer number (155403297).

Almost surely, 2^1243042302 is an apocalyptic number.

1243042302 is an abundant number, since it is smaller than the sum of its proper divisors (1243410450).

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

1243042302 is a wasteful number, since it uses less digits than its factorization.

1243042302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30683.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1243042302 is about 35256.8050452675. The cubic root of 1243042302 is about 1075.2149711064.

Adding to 1243042302 its reverse (2032403421), we get a palindrome (3275445723).

The spelling of 1243042302 in words is "one billion, two hundred forty-three million, forty-two thousand, three hundred two".