1313213121024 has 120 divisors (see below), whose sum is σ = 4069662770448. Its totient is φ = 375203727360.

The previous prime is 1313213120993. The next prime is 1313213121037. The reversal of 1313213121024 is 4201213123131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1313213120985 and 1313213121003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8648782 + ... + 8799309.

Almost surely, 2^{1313213121024} is an apocalyptic number.

1313213121024 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1313213121024 is an abundant number, since it is smaller than the sum of its proper divisors (2756449649424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313213121024 is an equidigital number, since it uses as much as digits as its factorization.

1313213121024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17448126 (or 17448103 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1313213121024 its reverse (4201213123131), we get a palindrome (5514426244155).

The spelling of 1313213121024 in words is "one trillion, three hundred thirteen billion, two hundred thirteen million, one hundred twenty-one thousand, twenty-four".