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131201022001 = 790292075867
BaseRepresentation
bin111101000110000110…
…0001011100000110001
3110112122121212111002011
41322030030023200301
54122144430201001
6140134541122521
712323166200140
oct1721414134061
9415577774064
10131201022001
11507076137a5
1221516b59441
13c4ab96623a
1464c8bc3757
15362d501d51
hex1e8c30b831

131201022001 has 8 divisors (see below), whose sum is σ = 149960704320. Its totient is φ = 112445509488.

The previous prime is 131201021999. The next prime is 131201022041. The reversal of 131201022001 is 100220102131.

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 131201022001 - 21 = 131201021999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131201022041) 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, 974731 + ... + 1101136.

It is an arithmetic number, because the mean of its divisors is an integer number (18745088040).

Almost surely, 2131201022001 is an apocalyptic number.

It is an amenable number.

131201022001 is a deficient number, since it is larger than the sum of its proper divisors (18759682319).

131201022001 is an equidigital number, since it uses as much as digits as its factorization.

131201022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084903.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 131201022001 its reverse (100220102131), we get a palindrome (231421124132).

The spelling of 131201022001 in words is "one hundred thirty-one billion, two hundred one million, twenty-two thousand, one".

Divisors: 1 7 9029 63203 2075867 14531069 18743003143 131201022001