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100303131231 = 3279141073321
BaseRepresentation
bin101110101101010001…
…0000101001001011111
3100120220022001000010100
41131122202011021133
53120410100144411
6114024552112143
710150414356012
oct1353242051137
9316808030110
10100303131231
11395a1559086
1217533395653
1395c6565834
144bd740b379
152920b66456
hex175a88525f

100303131231 has 12 divisors (see below), whose sum is σ = 146716254880. Its totient is φ = 66022313760.

The previous prime is 100303131223. The next prime is 100303131239. The reversal of 100303131231 is 132131303001.

It is a happy number.

100303131231 is a `hidden beast` number, since 1 + 0 + 0 + 303 + 131 + 231 = 666.

It is an interprime number because it is at equal distance from previous prime (100303131223) and next prime (100303131239).

It is not a de Polignac number, because 100303131231 - 23 = 100303131223 is a prime.

It is a super-2 number, since 2×1003031312312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100303131239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70535950 + ... + 70537371.

Almost surely, 2100303131231 is an apocalyptic number.

100303131231 is a deficient number, since it is larger than the sum of its proper divisors (46413123649).

100303131231 is a wasteful number, since it uses less digits than its factorization.

100303131231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141073406 (or 141073403 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 100303131231 its reverse (132131303001), we get a palindrome (232434434232).

The spelling of 100303131231 in words is "one hundred billion, three hundred three million, one hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 9 79 237 711 141073321 423219963 1269659889 11144792359 33434377077 100303131231