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31053103011 = 3271034785499
BaseRepresentation
bin11100111010111010…
…001011111110100011
32222011010220002010100
4130322322023332203
51002044043244021
622133211433443
72146345010010
oct347272137643
988133802110
1031053103011
11121957379a7
126027755883
132c0b605b88
14170825a707
15c1b2e9626
hex73ae8bfa3

31053103011 has 24 divisors (see below), whose sum is σ = 51759968000. Its totient is φ = 17572348656.

The previous prime is 31053103007. The next prime is 31053103013. The reversal of 31053103011 is 11030135013.

31053103011 is a `hidden beast` number, since 310 + 5 + 310 + 30 + 11 = 666.

It is not a de Polignac number, because 31053103011 - 22 = 31053103007 is a prime.

It is a super-2 number, since 2×310531030112 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31053103013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2386261 + ... + 2399238.

Almost surely, 231053103011 is an apocalyptic number.

31053103011 is a deficient number, since it is larger than the sum of its proper divisors (20706864989).

31053103011 is a wasteful number, since it uses less digits than its factorization.

31053103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785615 (or 4785612 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

Adding to 31053103011 its reverse (11030135013), we get a palindrome (42083238024).

The spelling of 31053103011 in words is "thirty-one billion, fifty-three million, one hundred three thousand, eleven".

Divisors: 1 3 7 9 21 63 103 309 721 927 2163 6489 4785499 14356497 33498493 43069491 100495479 301486437 492906397 1478719191 3450344779 4436157573 10351034337 31053103011