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31012010201 = 151208398597
BaseRepresentation
bin11100111000011101…
…011011100011011001
32222001021120100101102
4130320131123203121
51002003033311301
622125143001145
72145335510624
oct347035334331
988037510342
1031012010201
11121745202a7
126015a391b5
132c02c48ac3
141702a00dbb
15c178cdb6b
hex73875b8d9

31012010201 has 8 divisors (see below), whose sum is σ = 31232691264. Its totient is φ = 30791530800.

The previous prime is 31012010179. The next prime is 31012010207. The reversal of 31012010201 is 10201021013.

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 31012010201 - 222 = 31007815897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31012010207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265235 + ... + 363831.

It is an arithmetic number, because the mean of its divisors is an integer number (3904086408).

Almost surely, 231012010201 is an apocalyptic number.

It is an amenable number.

31012010201 is a deficient number, since it is larger than the sum of its proper divisors (220681063).

31012010201 is a wasteful number, since it uses less digits than its factorization.

31012010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100831.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 31012010201 its reverse (10201021013), we get a palindrome (41213031214).

The spelling of 31012010201 in words is "thirty-one billion, twelve million, ten thousand, two hundred one".

Divisors: 1 151 2083 98597 314533 14888147 205377551 31012010201