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13131013123111 = 135319058074199
BaseRepresentation
bin1011111100010100110101…
…0111110110110000100111
31201111022102212210202112111
42333011031113312300213
53210114303324414421
643532145410301451
72523453513644422
oct277051527666047
951438385722474
1013131013123111
114202916646254
121580a65887887
13743331713380
14335789c969b9
1517b87b41eee1
hexbf14d5f6c27

13131013123111 has 8 divisors (see below), whose sum is σ = 14407904095200. Its totient is φ = 11892238299552.

The previous prime is 13131013123091. The next prime is 13131013123147. The reversal of 13131013123111 is 11132131013131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13131013123111 - 235 = 13096653384743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131013123181) 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, 9529036411 + ... + 9529037788.

It is an arithmetic number, because the mean of its divisors is an integer number (1800988011900).

Almost surely, 213131013123111 is an apocalyptic number.

13131013123111 is a deficient number, since it is larger than the sum of its proper divisors (1276890972089).

13131013123111 is a wasteful number, since it uses less digits than its factorization.

13131013123111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19058074265.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 13131013123111 its reverse (11132131013131), we get a palindrome (24263144136242).

The spelling of 13131013123111 in words is "thirteen trillion, one hundred thirty-one billion, thirteen million, one hundred twenty-three thousand, one hundred eleven".

Divisors: 1 13 53 689 19058074199 247754964587 1010077932547 13131013123111