1310421211402 has 4 divisors (see below), whose sum is σ = 1965631817106. Its totient is φ = 655210605700.

The previous prime is 1310421211391. The next prime is 1310421211403. The reversal of 1310421211402 is 2041121240131.

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., 1287228662721 + 23192548681 = 1134561^2 + 152291^2 .

It is not an unprimeable number, because it can be changed into a prime (1310421211403) 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 as a sum of consecutive naturals, namely, 327605302849 + ... + 327605302852.

Almost surely, 2^{1310421211402} is an apocalyptic number.

1310421211402 is a deficient number, since it is larger than the sum of its proper divisors (655210605704).

1310421211402 is an equidigital number, since it uses as much as digits as its factorization.

1310421211402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655210605703.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1310421211402 its reverse (2041121240131), we get a palindrome (3351542451533).

The spelling of 1310421211402 in words is "one trillion, three hundred ten billion, four hundred twenty-one million, two hundred eleven thousand, four hundred two".