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11310566231 = 53549211219
BaseRepresentation
bin10101000100010100…
…11000101101010111
31002012020211022000102
422202022120231113
5141131001104411
65110200404315
7550200140516
oct124212305527
932166738012
1011310566231
1148845798a8
122237a7669b
1310b3384953
1479423467d
15462e88d3b
hex2a2298b57

11310566231 has 4 divisors (see below), whose sum is σ = 11310831000. Its totient is φ = 11310301464.

The previous prime is 11310566219. The next prime is 11310566237. The reversal of 11310566231 is 13266501311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13266501311 = 71895214473.

It is a cyclic number.

It is not a de Polignac number, because 11310566231 - 226 = 11243457367 is a prime.

It is a super-2 number, since 2×113105662312 (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 = 11310566194 and 11310566203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11310566237) 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, 52061 + ... + 159158.

It is an arithmetic number, because the mean of its divisors is an integer number (2827707750).

Almost surely, 211310566231 is an apocalyptic number.

11310566231 is a deficient number, since it is larger than the sum of its proper divisors (264769).

11310566231 is an equidigital number, since it uses as much as digits as its factorization.

11310566231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264768.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 11310566231 in words is "eleven billion, three hundred ten million, five hundred sixty-six thousand, two hundred thirty-one".

Divisors: 1 53549 211219 11310566231