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113031022231 = 2412633178127
BaseRepresentation
bin110100101000100101…
…1001000011010010111
3101210202022210212012201
41221101023020122113
53322441420202411
6123531543025331
711111004556651
oct1512113103227
9353668725181
10113031022231
1143a33079a66
1219aa5a3b247
13a87445379a
1456839836d1
152e182683c1
hex1a512c8697

113031022231 has 8 divisors (see below), whose sum is σ = 113543774784. Its totient is φ = 112518631680.

The previous prime is 113031022213. The next prime is 113031022243. The reversal of 113031022231 is 132220130311.

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 113031022231 - 25 = 113031022199 is a prime.

It is a super-2 number, since 2×1130310222312 (a number of 23 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 = 113031022199 and 113031022208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113031025231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 545490 + ... + 723616.

It is an arithmetic number, because the mean of its divisors is an integer number (14192971848).

Almost surely, 2113031022231 is an apocalyptic number.

113031022231 is a deficient number, since it is larger than the sum of its proper divisors (512752553).

113031022231 is a wasteful number, since it uses less digits than its factorization.

113031022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181001.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 113031022231 its reverse (132220130311), we get a palindrome (245251152542).

The spelling of 113031022231 in words is "one hundred thirteen billion, thirty-one million, twenty-two thousand, two hundred thirty-one".

Divisors: 1 241 2633 178127 634553 42928607 469008391 113031022231