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13130001312031 = 73090117964131
BaseRepresentation
bin1011111100010001000100…
…0100000110100100011111
31201111012211100220102200001
42333010101010012210133
53210110220313441111
643531501143515131
72523416446462042
oct277042104064437
951435740812601
1013130001312031
11420244749564a
121580822a58aa7
137431ccbcc1a6
143356d1752c59
1517b81c6a91c1
hexbf11110691f

13130001312031 has 4 divisors (see below), whose sum is σ = 13130020007064. Its totient is φ = 13129982617000.

The previous prime is 13130001311971. The next prime is 13130001312037. The reversal of 13130001312031 is 13021310003131.

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

It is a cyclic number.

It is not a de Polignac number, because 13130001312031 - 29 = 13130001311519 is a prime.

It is a super-2 number, since 2×131300013120312 (a number of 27 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 (13130001312037) 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, 8251165 + ... + 9712966.

It is an arithmetic number, because the mean of its divisors is an integer number (3282505001766).

Almost surely, 213130001312031 is an apocalyptic number.

13130001312031 is a deficient number, since it is larger than the sum of its proper divisors (18695033).

13130001312031 is an equidigital number, since it uses as much as digits as its factorization.

13130001312031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18695032.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13130001312031 its reverse (13021310003131), we get a palindrome (26151311315162).

The spelling of 13130001312031 in words is "thirteen trillion, one hundred thirty billion, one million, three hundred twelve thousand, thirty-one".

Divisors: 1 730901 17964131 13130001312031