1310213122421 has 8 divisors (see below), whose sum is σ = 1497393354240. Its totient is φ = 1123034622768.

The previous prime is 1310213122411. The next prime is 1310213122451. The reversal of 1310213122421 is 1242213120131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1310213122421 - 2²⁶ = 1310146013557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310213122411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2674715 + ... + 3126423.

It is an arithmetic number, because the mean of its divisors is an integer number (187174169280).

Almost surely, 2^{1310213122421} is an apocalyptic number.

It is an amenable number.

1310213122421 is a deficient number, since it is larger than the sum of its proper divisors (187180231819).

1310213122421 is an equidigital number, since it uses as much as digits as its factorization.

1310213122421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866083.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1310213122421 its reverse (1242213120131), we get a palindrome (2552426242552).

The spelling of 1310213122421 in words is "one trillion, three hundred ten billion, two hundred thirteen million, one hundred twenty-two thousand, four hundred twenty-one".