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231231102101 = 4746310625941
BaseRepresentation
bin1101011101011001110…
…0101001110010010101
3211002211220010001110122
43113112130221302111
512242030130231401
6254120501001325
722464056636546
oct3272634516225
9732756101418
10231231102101
118a078a2448a
12389929b3245
1318a6077824c
14b297c344cd
1560351ce21b
hex35d6729c95

231231102101 has 8 divisors (see below), whose sum is σ = 236660980224. Its totient is φ = 225822476880.

The previous prime is 231231102083. The next prime is 231231102121. The reversal of 231231102101 is 101201132132.

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 231231102101 - 234 = 214051232917 is a prime.

It is a super-2 number, since 2×2312311021012 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231231102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231231102121) 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, 5291210 + ... + 5334731.

It is an arithmetic number, because the mean of its divisors is an integer number (29582622528).

Almost surely, 2231231102101 is an apocalyptic number.

It is an amenable number.

231231102101 is a deficient number, since it is larger than the sum of its proper divisors (5429878123).

231231102101 is a wasteful number, since it uses less digits than its factorization.

231231102101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10626451.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 231231102101 its reverse (101201132132), we get a palindrome (332432234233).

The spelling of 231231102101 in words is "two hundred thirty-one billion, two hundred thirty-one million, one hundred two thousand, one hundred one".

Divisors: 1 47 463 21761 10625941 499419227 4919810683 231231102101