1310121202 has 16 divisors (see below), whose sum is σ = 2120999832. Its totient is φ = 603342720.

The previous prime is 1310121199. The next prime is 1310121203. The reversal of 1310121202 is 2021210131.

It can be written as a sum of positive squares in 4 ways, for example, as 1149820281 + 160300921 = 33909^2 + 12661^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (1310121203) by changing a digit.

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, 43249 + ... + 67012.

Almost surely, 2^1310121202 is an apocalyptic number.

1310121202 is a deficient number, since it is larger than the sum of its proper divisors (810878630).

1310121202 is a wasteful number, since it uses less digits than its factorization.

1310121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110733.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1310121202 is about 36195.5964448716. The cubic root of 1310121202 is about 1094.2179251858.

Adding to 1310121202 its reverse (2021210131), we get a palindrome (3331331333).

The spelling of 1310121202 in words is "one billion, three hundred ten million, one hundred twenty-one thousand, two hundred two".