1301213221423 has 4 divisors (see below), whose sum is σ = 1301230795320. Its totient is φ = 1301195647528.

The previous prime is 1301213221409. The next prime is 1301213221433. The reversal of 1301213221423 is 3241223121031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301213221423 - 2²¹ = 1301211124271 is a prime.

It is a super-2 number, since 2×1301213221423² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301213221403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8675413 + ... + 8824126.

It is an arithmetic number, because the mean of its divisors is an integer number (325307698830).

Almost surely, 2^{1301213221423} is an apocalyptic number.

1301213221423 is a deficient number, since it is larger than the sum of its proper divisors (17573897).

1301213221423 is an equidigital number, since it uses as much as digits as its factorization.

1301213221423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17573896.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1301213221423 its reverse (3241223121031), we get a palindrome (4542436342454).

The spelling of 1301213221423 in words is "one trillion, three hundred one billion, two hundred thirteen million, two hundred twenty-one thousand, four hundred twenty-three".