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11232232031 = 25743705183
BaseRepresentation
bin10100111010111111…
…00100001001011111
31001222210102111200202
422131133210021133
5141000422411111
65054321414115
7545226253106
oct123537441137
931883374622
1011232232031
114844336199
12221579a33b
1310a0088857
14787a8303d
1545b163b3b
hex29d7e425f

11232232031 has 4 divisors (see below), whose sum is σ = 11275937472. Its totient is φ = 11188526592.

The previous prime is 11232232009. The next prime is 11232232049. The reversal of 11232232031 is 13023223211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13023223211 = 41519313669.

It is a cyclic number.

It is not a de Polignac number, because 11232232031 - 230 = 10158490207 is a prime.

It is a super-2 number, since 2×112322320312 (a number of 21 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 = 11232231994 and 11232232012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232235031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21852335 + ... + 21852848.

It is an arithmetic number, because the mean of its divisors is an integer number (2818984368).

Almost surely, 211232232031 is an apocalyptic number.

11232232031 is a deficient number, since it is larger than the sum of its proper divisors (43705441).

11232232031 is an equidigital number, since it uses as much as digits as its factorization.

11232232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43705440.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 11232232031 its reverse (13023223211), we get a palindrome (24255455242).

The spelling of 11232232031 in words is "eleven billion, two hundred thirty-two million, two hundred thirty-two thousand, thirty-one".

Divisors: 1 257 43705183 11232232031