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31113301001 = 3115126924709
BaseRepresentation
bin11100111110011111…
…110100110000001001
32222022100011110020112
4130332133310300021
51002210001113001
622143202004105
72151005460236
oct347637646011
988270143215
1031113301001
1112216713602
126043946635
132c1ac21ca3
14171224a78d
15c2173acbb
hex73e7f4c09

31113301001 has 16 divisors (see below), whose sum is σ = 32451148800. Its totient is φ = 29797848000.

The previous prime is 31113300973. The next prime is 31113301013. The reversal of 31113301001 is 10010331113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31113301001 - 26 = 31113300937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31113301301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1246835 + ... + 1271543.

It is an arithmetic number, because the mean of its divisors is an integer number (2028196800).

Almost surely, 231113301001 is an apocalyptic number.

31113301001 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31113301001 is a deficient number, since it is larger than the sum of its proper divisors (1337847799).

31113301001 is a wasteful number, since it uses less digits than its factorization.

31113301001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25160.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31113301001 its reverse (10010331113), we get a palindrome (41123632114).

The spelling of 31113301001 in words is "thirty-one billion, one hundred thirteen million, three hundred one thousand, one".

Divisors: 1 31 151 269 4681 8339 24709 40619 765979 1259189 3731059 6646721 115662829 206048351 1003654871 31113301001