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2001211332031 = 19120835030027
BaseRepresentation
bin11101000111110001011…
…111011001010110111111
321002022110212011220010101
4131013301133121112333
5230241440100111111
64131202132021531
7264403611441232
oct35076137312677
97068425156111
102001211332031
1170178869753a
12283a217618a7
131169374c57a2
146cc056cd419
15370c9505bc1
hex1d1f17d95bf

2001211332031 has 8 divisors (see below), whose sum is σ = 2012655043584. Its totient is φ = 1989777685080.

The previous prime is 2001211332011. The next prime is 2001211332059. The reversal of 2001211332031 is 1302331121002.

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 2001211332031 - 239 = 1451455518143 is a prime.

It is a super-2 number, since 2×20012113320312 (a number of 25 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 (2001211332011) 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, 2117161 + ... + 2912866.

It is an arithmetic number, because the mean of its divisors is an integer number (251581880448).

Almost surely, 22001211332031 is an apocalyptic number.

2001211332031 is a deficient number, since it is larger than the sum of its proper divisors (11443711553).

2001211332031 is a wasteful number, since it uses less digits than its factorization.

2001211332031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5032301.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2001211332031 its reverse (1302331121002), we get a palindrome (3303542453033).

The spelling of 2001211332031 in words is "two trillion, one billion, two hundred eleven million, three hundred thirty-two thousand, thirty-one".

Divisors: 1 191 2083 397853 5030027 960735157 10477546241 2001211332031