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13111212203102 = 21346110611030987
BaseRepresentation
bin1011111011001011000100…
…1001010101110001011110
31201102102022220212210200202
42332302301021111301132
53204303230310444402
643515112512023502
72522153026623566
oct276626111256136
951372286783622
1013111212203102
1141a5485530a52
12157905a531b92
137414c7360060
1433482c1d3da6
1517b0bcdcab02
hexbecb1255c5e

13111212203102 has 32 divisors (see below), whose sum is σ = 21245619203424. Its totient is φ = 6032505283200.

The previous prime is 13111212203099. The next prime is 13111212203107. The reversal of 13111212203102 is 20130221211131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111212203107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12201653 + ... + 13232639.

It is an arithmetic number, because the mean of its divisors is an integer number (663925600107).

Almost surely, 213111212203102 is an apocalyptic number.

13111212203102 is a deficient number, since it is larger than the sum of its proper divisors (8134407000322).

13111212203102 is a wasteful number, since it uses less digits than its factorization.

13111212203102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032524.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13111212203102 its reverse (20130221211131), we get a palindrome (33241433414233).

The spelling of 13111212203102 in words is "thirteen trillion, one hundred eleven billion, two hundred twelve million, two hundred three thousand, one hundred two".

Divisors: 1 2 13 26 461 922 1061 2122 5993 11986 13793 27586 489121 978242 1030987 2061974 6358573 12717146 13402831 26805662 475285007 950570014 1093877207 2187754414 6178705091 12357410182 14220403691 28440807382 504277392427 1008554784854 6555606101551 13111212203102