1213313121330 has 16 divisors (see below), whose sum is σ = 2911951491264. Its totient is φ = 323550165680.

The previous prime is 1213313121323. The next prime is 1213313121337. The reversal of 1213313121330 is 331213133121.

It is an interprime number because it is at equal distance from previous prime (1213313121323) and next prime (1213313121337).

It is a self number, because there is not a number n which added to its sum of digits gives 1213313121330.

It is not an unprimeable number, because it can be changed into a prime (1213313121337) 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, 20221885326 + ... + 20221885385.

It is an arithmetic number, because the mean of its divisors is an integer number (181996968204).

Almost surely, 2^{1213313121330} is an apocalyptic number.

1213313121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213313121330 is an abundant number, since it is smaller than the sum of its proper divisors (1698638369934).

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

1213313121330 is a wasteful number, since it uses less digits than its factorization.

1213313121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40443770721.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1213313121330 its reverse (331213133121), we get a palindrome (1544526254451).

The spelling of 1213313121330 in words is "one trillion, two hundred thirteen billion, three hundred thirteen million, one hundred twenty-one thousand, three hundred thirty".