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13012001211331 = 255742191206157
BaseRepresentation
bin1011110101011001011110…
…1101011100001111000011
31201001221020201220020021001
42331112113231130033003
53201142034302230311
643401344132112431
72512041343251613
oct275262755341703
951057221806231
1013012001211331
1141673a4509471
121561990a65717
137350461553b5
1432dad9c7aa43
151787130964c1
hexbd597b5c3c3

13012001211331 has 8 divisors (see below), whose sum is σ = 13020186132080. Its totient is φ = 13003818716448.

The previous prime is 13012001211271. The next prime is 13012001211379. The reversal of 13012001211331 is 13311210021031.

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 13012001211331 - 219 = 13012000687043 is a prime.

It is a super-2 number, since 2×130120012113312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012001211299 and 13012001211308.

It is not an unprimeable number, because it can be changed into a prime (13012001211431) 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, 10184905 + ... + 11391061.

It is an arithmetic number, because the mean of its divisors is an integer number (1627523266510).

Almost surely, 213012001211331 is an apocalyptic number.

13012001211331 is a deficient number, since it is larger than the sum of its proper divisors (8184920749).

13012001211331 is a wasteful number, since it uses less digits than its factorization.

13012001211331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212933.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 13012001211331 its reverse (13311210021031), we get a palindrome (26323211232362).

The spelling of 13012001211331 in words is "thirteen trillion, twelve billion, one million, two hundred eleven thousand, three hundred thirty-one".

Divisors: 1 2557 4219 1206157 10787983 3084143449 5088776383 13012001211331