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13125411343221 = 341251425142077
BaseRepresentation
bin1011111011111111111101…
…1110110000101101110101
31201110202222111001212011020
42332333333132300231311
53210021320300440341
643525421500531353
72523164633415552
oct276777736605565
951422874055136
1013125411343221
1142005015850a1
12157b961850b59
1374294acb4a08
143353b7d07a29
1517b64e748566
hexbefff7b0b75

13125411343221 has 16 divisors (see below), whose sum is σ = 17998815014208. Its totient is φ = 8502841520000.

The previous prime is 13125411343211. The next prime is 13125411343271. The reversal of 13125411343221 is 12234311452131.

Adding to 13125411343221 its reverse (12234311452131), we get a palindrome (25359722795352).

It is a cyclic number.

It is not a de Polignac number, because 13125411343221 - 233 = 13116821408629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125411343211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212540166 + ... + 212601911.

It is an arithmetic number, because the mean of its divisors is an integer number (1124925938388).

Almost surely, 213125411343221 is an apocalyptic number.

It is an amenable number.

13125411343221 is a deficient number, since it is larger than the sum of its proper divisors (4873403670987).

13125411343221 is a wasteful number, since it uses less digits than its factorization.

13125411343221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425142372.

The product of its digits is 17280, while the sum is 33.

The spelling of 13125411343221 in words is "thirteen trillion, one hundred twenty-five billion, four hundred eleven million, three hundred forty-three thousand, two hundred twenty-one".

Divisors: 1 3 41 123 251 753 10291 30873 425142077 1275426231 17430825157 52292475471 106710661327 320131983981 4375137114407 13125411343221