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13100122121 = 232919640363
BaseRepresentation
bin11000011001101010…
…00000000000001001
31020210222012011012012
430030311000000021
5203312112401441
610003525025305
7642430125602
oct141465000011
936728164165
1013100122121
11561274a709
122657255235
13130a058c68
148c3b8cda9
1551a12c9eb
hex30cd40009

13100122121 has 8 divisors (see below), whose sum is σ = 14141062080. Its totient is φ = 12098462992.

The previous prime is 13100122111. The next prime is 13100122127. The reversal of 13100122121 is 12122100131.

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 13100122121 - 230 = 12026380297 is a prime.

It is a super-2 number, since 2×131001221212 (a number of 21 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 = 13100122096 and 13100122105.

It is not an unprimeable number, because it can be changed into a prime (13100122127) 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, 9819515 + ... + 9820848.

It is an arithmetic number, because the mean of its divisors is an integer number (1767632760).

Almost surely, 213100122121 is an apocalyptic number.

It is an amenable number.

13100122121 is a deficient number, since it is larger than the sum of its proper divisors (1040939959).

13100122121 is a wasteful number, since it uses less digits than its factorization.

13100122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19640415.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 13100122121 its reverse (12122100131), we get a palindrome (25222222252).

The spelling of 13100122121 in words is "thirteen billion, one hundred million, one hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 23 29 667 19640363 451728349 569570527 13100122121