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131053402001 = 1091202324789
BaseRepresentation
bin111101000001101100…
…1000011011110010001
3110112021100002121111202
41322003121003132101
54121344132331001
6140112145120545
712316424352134
oct1720331033621
9415240077452
10131053402001
11506412576a5
1221495629155
13c4871bb722
1464b335821b
15362059296b
hex1e83643791

131053402001 has 4 divisors (see below), whose sum is σ = 132255726900. Its totient is φ = 129851077104.

The previous prime is 131053401989. The next prime is 131053402009. The reversal of 131053402001 is 100204350131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100204350131 = 383261630157.

It can be written as a sum of positive squares in 2 ways, for example, as 51501763600 + 79551638401 = 226940^2 + 282049^2 .

It is a cyclic number.

It is not a de Polignac number, because 131053402001 - 26 = 131053401937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131053402009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 601162286 + ... + 601162503.

It is an arithmetic number, because the mean of its divisors is an integer number (33063931725).

Almost surely, 2131053402001 is an apocalyptic number.

It is an amenable number.

131053402001 is a deficient number, since it is larger than the sum of its proper divisors (1202324899).

131053402001 is a wasteful number, since it uses less digits than its factorization.

131053402001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1202324898.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 131053402001 its reverse (100204350131), we get a palindrome (231257752132).

The spelling of 131053402001 in words is "one hundred thirty-one billion, fifty-three million, four hundred two thousand, one".

Divisors: 1 109 1202324789 131053402001