1421243312313 has 32 divisors (see below), whose sum is σ = 2074487500800. Its totient is φ = 858351229760.

The previous prime is 1421243312257. The next prime is 1421243312347. The reversal of 1421243312313 is 3132133421241.

It is a cyclic number.

It is not a de Polignac number, because 1421243312313 - 2²² = 1421239118009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421243312213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33108538 + ... + 33151436.

It is an arithmetic number, because the mean of its divisors is an integer number (64827734400).

Almost surely, 2^{1421243312313} is an apocalyptic number.

It is an amenable number.

1421243312313 is a deficient number, since it is larger than the sum of its proper divisors (653244188487).

1421243312313 is a wasteful number, since it uses less digits than its factorization.

1421243312313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46397.

The product of its digits is 10368, while the sum is 30.

Adding to 1421243312313 its reverse (3132133421241), we get a palindrome (4553376733554).

The spelling of 1421243312313 in words is "one trillion, four hundred twenty-one billion, two hundred forty-three million, three hundred twelve thousand, three hundred thirteen".