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13010012131 = 53245471927
BaseRepresentation
bin11000001110111010…
…10000011111100011
31020120200122002112011
430013131100133203
5203121030342011
65550545413351
7640254164344
oct140735203743
936520562464
1013010012131
1155768a3746
12263103a257
1312c4498c3c
148b5c140cb
1551227d621
hex3077507e3

13010012131 has 4 divisors (see below), whose sum is σ = 13255484112. Its totient is φ = 12764540152.

The previous prime is 13010012111. The next prime is 13010012137. The reversal of 13010012131 is 13121001031.

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 13010012131 - 213 = 13010003939 is a prime.

It is a super-2 number, since 2×130100121312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13010012137) 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, 122735911 + ... + 122736016.

It is an arithmetic number, because the mean of its divisors is an integer number (3313871028).

Almost surely, 213010012131 is an apocalyptic number.

13010012131 is a deficient number, since it is larger than the sum of its proper divisors (245471981).

13010012131 is an equidigital number, since it uses as much as digits as its factorization.

13010012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245471980.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13010012131 its reverse (13121001031), we get a palindrome (26131013162).

The spelling of 13010012131 in words is "thirteen billion, ten million, twelve thousand, one hundred thirty-one".

Divisors: 1 53 245471927 13010012131