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13122312301 = 779118719991
BaseRepresentation
bin11000011100010011…
…01001100001101101
31020212111221112101201
430032021221201231
5203333302443201
610010040405501
7643116546160
oct141611514155
936774845351
1013122312301
1156242264aa
122662776891
131311828247
148c6ac7ad7
1551c062801
hex30e26986d

13122312301 has 16 divisors (see below), whose sum is σ = 15200317440. Its totient is φ = 11095409520.

The previous prime is 13122312263. The next prime is 13122312353. The reversal of 13122312301 is 10321322131.

It is a cyclic number.

It is not a de Polignac number, because 13122312301 - 229 = 12585441389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122312391) 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, 646416 + ... + 666406.

It is an arithmetic number, because the mean of its divisors is an integer number (950019840).

Almost surely, 213122312301 is an apocalyptic number.

It is an amenable number.

13122312301 is a deficient number, since it is larger than the sum of its proper divisors (2078005139).

13122312301 is a wasteful number, since it uses less digits than its factorization.

13122312301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21264.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13122312301 its reverse (10321322131), we get a palindrome (23443634432).

The spelling of 13122312301 in words is "thirteen billion, one hundred twenty-two million, three hundred twelve thousand, three hundred one".

Divisors: 1 7 79 553 1187 8309 19991 93773 139937 656411 1579289 11055023 23729317 166105219 1874616043 13122312301