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13031233313123 = 157969143119359
BaseRepresentation
bin1011110110100001001000…
…0010000101100101100011
31201010202220001111020012102
42331220102002011211203
53202000431212004443
643414244350521015
72513322052363334
oct275502202054543
951122801436172
1013031233313123
114174573533173
12156565980616b
13736abc70999c
14330a0219228b
15178e8b6cbcb8
hexbda12085963

13031233313123 has 8 divisors (see below), whose sum is σ = 13039783987200. Its totient is φ = 13022683019208.

The previous prime is 13031233313117. The next prime is 13031233313177. The reversal of 13031233313123 is 32131333213031.

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 13031233313123 - 24 = 13031233313107 is a prime.

It is a super-2 number, since 2×130312333131232 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13031233313183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109117118 + ... + 109236476.

It is an arithmetic number, because the mean of its divisors is an integer number (1629972998400).

Almost surely, 213031233313123 is an apocalyptic number.

13031233313123 is a deficient number, since it is larger than the sum of its proper divisors (8550674077).

13031233313123 is a wasteful number, since it uses less digits than its factorization.

13031233313123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190081.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 13031233313123 its reverse (32131333213031), we get a palindrome (45162566526154).

The spelling of 13031233313123 in words is "thirteen trillion, thirty-one billion, two hundred thirty-three million, three hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 1579 69143 119359 109176797 188467861 8252839337 13031233313123