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13111041231420 = 223511731014016719
BaseRepresentation
bin1011111011001010011011…
…1101001000101000111100
31201102101220000011112122020
42332302212331020220330
53204302403023401140
643515043523320140
72522145552450066
oct276624675105074
951371800145566
1013111041231420
1141a53a7a75440
121579011220050
1374149aaca692
1433481360a736
1517b0acda76d0
hexbeca6f48a3c

13111041231420 has 384 divisors, whose sum is σ = 41107185745920. Its totient is φ = 3095654400000.

The previous prime is 13111041231397. The next prime is 13111041231443. The reversal of 13111041231420 is 2413214011131.

It is an interprime number because it is at equal distance from previous prime (13111041231397) and next prime (13111041231443).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1951334821 + ... + 1951341539.

It is an arithmetic number, because the mean of its divisors is an integer number (107049962880).

Almost surely, 213111041231420 is an apocalyptic number.

13111041231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13111041231420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20553592872960).

13111041231420 is an abundant number, since it is smaller than the sum of its proper divisors (27996144514500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13111041231420 is a wasteful number, since it uses less digits than its factorization.

13111041231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7317 (or 7315 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 13111041231420 its reverse (2413214011131), we get a palindrome (15524255242551).

The spelling of 13111041231420 in words is "thirteen trillion, one hundred eleven billion, forty-one million, two hundred thirty-one thousand, four hundred twenty".