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13031431341401 = 112712491511569
BaseRepresentation
bin1011110110100001110111…
…0101100000010101011001
31201010210101212010002221002
42331220131311200111121
53202001332410411101
643414320143154345
72513330005526264
oct275503565402531
951123355102832
1013031431341401
114174665299800
1215656b3ba59b5
13736b21753695
14330a205bdcdb
15178e9dc96d6b
hexbda1dd60559

13031431341401 has 12 divisors (see below), whose sum is σ = 14324015212500. Its totient is φ = 11846581655040.

The previous prime is 13031431341391. The next prime is 13031431341433. The reversal of 13031431341401 is 10414313413031.

It can be written as a sum of positive squares in 2 ways, for example, as 12079440851401 + 951990490000 = 3475549^2 + 975700^2 .

It is not a de Polignac number, because 13031431341401 - 218 = 13031431079257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13031431340401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7865345 + ... + 9376913.

It is an arithmetic number, because the mean of its divisors is an integer number (1193667934375).

Almost surely, 213031431341401 is an apocalyptic number.

13031431341401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13031431341401 is a deficient number, since it is larger than the sum of its proper divisors (1292583871099).

13031431341401 is a wasteful number, since it uses less digits than its factorization.

13031431341401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582840 (or 1582829 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 13031431341401 its reverse (10414313413031), we get a palindrome (23445744754432).

The spelling of 13031431341401 in words is "thirteen trillion, thirty-one billion, four hundred thirty-one million, three hundred forty-one thousand, four hundred one".

Divisors: 1 11 121 71249 783739 1511569 8621129 16627259 182899849 107697779681 1184675576491 13031431341401