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1213212313023 = 3616629575481
BaseRepresentation
bin10001101001111001000…
…101101100010110111111
311021222111212000011011020
4101221321011230112333
5124334124323004043
62325201514155223
7153436350340044
oct21517105542677
94258455004136
101213212313023
1142857a7a4457
12177166422b13
138a5369652c9
1442a1115d1cb
1521859ac9e83
hex11a7916c5bf

1213212313023 has 8 divisors (see below), whose sum is σ = 1644134719536. Its totient is φ = 795549057600.

The previous prime is 1213212313003. The next prime is 1213212313069. The reversal of 1213212313023 is 3203132123121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1213212313023 - 221 = 1213210215871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213212312984 and 1213212313002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213212313003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3314787558 + ... + 3314787923.

It is an arithmetic number, because the mean of its divisors is an integer number (205516839942).

Almost surely, 21213212313023 is an apocalyptic number.

1213212313023 is a deficient number, since it is larger than the sum of its proper divisors (430922406513).

1213212313023 is an equidigital number, since it uses as much as digits as its factorization.

1213212313023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6629575545.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1213212313023 its reverse (3203132123121), we get a palindrome (4416344436144).

The spelling of 1213212313023 in words is "one trillion, two hundred thirteen billion, two hundred twelve million, three hundred thirteen thousand, twenty-three".

Divisors: 1 3 61 183 6629575481 19888726443 404404104341 1213212313023