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1232212213231 = 13133727911573
BaseRepresentation
bin10001111011100101100…
…100100011110111101111
311100210112222200002101221
4101323211210203313233
5130142032311310411
62342023120044211
7155011236666106
oct21734544436757
94323488602357
101232212213231
1143563a74171a
1217a989463667
138c2740994cc
14438d46ad03d
15220bcb45071
hex11ee5923def

1232212213231 has 8 divisors (see below), whose sum is σ = 1245302785584. Its totient is φ = 1219177464960.

The previous prime is 1232212213229. The next prime is 1232212213289. The reversal of 1232212213231 is 1323122122321.

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 1232212213231 - 21 = 1232212213229 is a prime.

It is a super-2 number, since 2×12322122132312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1232212213196 and 1232212213205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232212213031) 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, 13911640 + ... + 13999933.

It is an arithmetic number, because the mean of its divisors is an integer number (155662848198).

Almost surely, 21232212213231 is an apocalyptic number.

1232212213231 is a deficient number, since it is larger than the sum of its proper divisors (13090572353).

1232212213231 is a wasteful number, since it uses less digits than its factorization.

1232212213231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27912041.

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

Adding to 1232212213231 its reverse (1323122122321), we get a palindrome (2555334335552).

The spelling of 1232212213231 in words is "one trillion, two hundred thirty-two billion, two hundred twelve million, two hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 131 337 44147 27911573 3656416063 9406200101 1232212213231