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101031031023 = 31343347173617
BaseRepresentation
bin101111000010111101…
…0110011000011101111
3100122210000201010220220
41132011322303003233
53123402420443043
6114225113342423
710204433410566
oct1360572630357
9318700633826
10101031031023
1139935423a5a
12176b7107a13
1396b12c2c80
144c65d68bdd
1529649ea483
hex1785eb30ef

101031031023 has 32 divisors (see below), whose sum is σ = 148872573696. Its totient is φ = 60551705088.

The previous prime is 101031031021. The next prime is 101031031051. The reversal of 101031031023 is 320130130101.

It is not a de Polignac number, because 101031031023 - 21 = 101031031021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101031030993 and 101031031011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101031031021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495111 + ... + 668727.

It is an arithmetic number, because the mean of its divisors is an integer number (4652267928).

Almost surely, 2101031031023 is an apocalyptic number.

101031031023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

101031031023 is a deficient number, since it is larger than the sum of its proper divisors (47841542673).

101031031023 is a wasteful number, since it uses less digits than its factorization.

101031031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174023.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 101031031023 its reverse (320130130101), we get a palindrome (421161161124).

The spelling of 101031031023 in words is "one hundred one billion, thirty-one million, thirty-one thousand, twenty-three".

Divisors: 1 3 13 39 43 129 347 559 1041 1677 4511 13533 14921 44763 173617 193973 520851 581919 2257021 6771063 7465531 22396593 60245099 97051903 180735297 291155709 783186287 2349558861 2590539257 7771617771 33677010341 101031031023