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1323213131213 = 5925189351957
BaseRepresentation
bin10011010000010101101…
…001100000110111001101
311200111102222221200212122
4103100111221200313031
5133134420030144323
62451513053342325
7164412312015641
oct23202551406715
94614388850778
101323213131213
11470198353256
121945454979a5
1397a1738a73c
14480884b6c21
1524646cd4ec8
hex13415a60dcd

1323213131213 has 8 divisors (see below), whose sum is σ = 1351001604960. Its totient is φ = 1295603362000.

The previous prime is 1323213131189. The next prime is 1323213131249. The reversal of 1323213131213 is 3121313123231.

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 1323213131213 - 222 = 1323208936909 is a prime.

It is a super-2 number, since 2×13232131312132 (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 (1323213131113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44661170 + ... + 44690787.

It is an arithmetic number, because the mean of its divisors is an integer number (168875200620).

Almost surely, 21323213131213 is an apocalyptic number.

It is an amenable number.

1323213131213 is a deficient number, since it is larger than the sum of its proper divisors (27788473747).

1323213131213 is an equidigital number, since it uses as much as digits as its factorization.

1323213131213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89352267.

The product of its digits is 1944, while the sum is 26.

Adding to 1323213131213 its reverse (3121313123231), we get a palindrome (4444526254444).

The spelling of 1323213131213 in words is "one trillion, three hundred twenty-three billion, two hundred thirteen million, one hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 59 251 14809 89351957 5271765463 22427341207 1323213131213