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13031001101 = 25215168981
BaseRepresentation
bin11000010001011010…
…10100110000001101
31020122011010102222102
430020231110300031
5203141414013401
65553015324445
7640630452566
oct141055246015
936564112872
1013031001101
115587729aa8
122638080725
1312c8937551
148b891916d
1551402756b
hex308b54c0d

13031001101 has 4 divisors (see below), whose sum is σ = 13036172604. Its totient is φ = 13025829600.

The previous prime is 13031001077. The next prime is 13031001107. The reversal of 13031001101 is 10110013031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5640160201 + 7390840900 = 75101^2 + 85970^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031001101 - 214 = 13030984717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031001107) 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, 2581970 + ... + 2587011.

It is an arithmetic number, because the mean of its divisors is an integer number (3259043151).

Almost surely, 213031001101 is an apocalyptic number.

It is an amenable number.

13031001101 is a deficient number, since it is larger than the sum of its proper divisors (5171503).

13031001101 is an equidigital number, since it uses as much as digits as its factorization.

13031001101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171502.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 13031001101 its reverse (10110013031), we get a palindrome (23141014132).

The spelling of 13031001101 in words is "thirteen billion, thirty-one million, one thousand, one hundred one".

Divisors: 1 2521 5168981 13031001101