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11223211202031 = 315256324521479
BaseRepresentation
bin1010001101010001101110…
…0001000101010111101111
31110201221001212220121010010
42203110123201011113233
52432340114031431111
635511512210144303
72235564431121303
oct243243341052757
943657055817103
1011223211202031
113637812153804
121313172882093
136354624ac3aa
142ab2c6201d03
15146e1c75baa6
hexa351b8455ef

11223211202031 has 8 divisors (see below), whose sum is σ = 14964380298880. Its totient is φ = 7482091453272.

The previous prime is 11223211202003. The next prime is 11223211202053. The reversal of 11223211202031 is 13020211232211.

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

It is not a de Polignac number, because 11223211202031 - 214 = 11223211185647 is a prime.

It is a super-2 number, since 2×112232112020312 (a number of 27 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 = 11223211201989 and 11223211202007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11223211202431) 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, 11803051 + ... + 12718428.

It is an arithmetic number, because the mean of its divisors is an integer number (1870547537360).

Almost surely, 211223211202031 is an apocalyptic number.

11223211202031 is a deficient number, since it is larger than the sum of its proper divisors (3741169096849).

11223211202031 is a wasteful number, since it uses less digits than its factorization.

11223211202031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24674045.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 11223211202031 its reverse (13020211232211), we get a palindrome (24243422434242).

The spelling of 11223211202031 in words is "eleven trillion, two hundred twenty-three billion, two hundred eleven million, two hundred two thousand, thirty-one".

Divisors: 1 3 152563 457689 24521479 73564437 3741070400677 11223211202031