1311002242 has 32 divisors (see below), whose sum is σ = 2262343680. Its totient is φ = 563507280.

The previous prime is 1311002237. The next prime is 1311002257. The reversal of 1311002242 is 2422001131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251143 + ... + 256309.

It is an arithmetic number, because the mean of its divisors is an integer number (70698240).

Almost surely, 2^1311002242 is an apocalyptic number.

1311002242 is a deficient number, since it is larger than the sum of its proper divisors (951341438).

1311002242 is a wasteful number, since it uses less digits than its factorization.

1311002242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5806.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1311002242 is about 36207.7649406864. The cubic root of 1311002242 is about 1094.4631528121.

Adding to 1311002242 its reverse (2422001131), we get a palindrome (3733003373).

The spelling of 1311002242 in words is "one billion, three hundred eleven million, two thousand, two hundred forty-two".