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131331123101 = 5910920421571
BaseRepresentation
bin111101001001111110…
…0011110011110011101
3110112222200200022020102
41322103330132132131
54122431231414401
6140155505430445
712326336061503
oct1722374363635
9415880608212
10131331123101
1150773aa4672
122155263b425
13c4cc8b8a39
1464dc1ac673
153639b5056b
hex1e93f1e79d

131331123101 has 8 divisors (see below), whose sum is σ = 134782375200. Its totient is φ = 127920714480.

The previous prime is 131331123097. The next prime is 131331123103. The reversal of 131331123101 is 101321133131.

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 131331123101 - 22 = 131331123097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131331123103) 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, 10204355 + ... + 10217216.

It is an arithmetic number, because the mean of its divisors is an integer number (16847796900).

Almost surely, 2131331123101 is an apocalyptic number.

It is an amenable number.

131331123101 is a deficient number, since it is larger than the sum of its proper divisors (3451252099).

131331123101 is a wasteful number, since it uses less digits than its factorization.

131331123101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20421739.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 131331123101 its reverse (101321133131), we get a palindrome (232652256232).

The spelling of 131331123101 in words is "one hundred thirty-one billion, three hundred thirty-one million, one hundred twenty-three thousand, one hundred one".

Divisors: 1 59 109 6431 20421571 1204872689 2225951239 131331123101