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31103201311233 = 3131227348647603
BaseRepresentation
bin1110001001001110001110…
…10000111111101000000001
311002010102210120120222122120
413010213013100333220001
513034043324013424413
6150052340255554453
76360063215664522
oct704470720775001
9132112716528576
1031103201311233
119a01880310607
1235a401322ba29
131448033524b0c
1479758daa0849
1538e0eb836723
hex1c49c743fa01

31103201311233 has 16 divisors (see below), whose sum is σ = 41971593159936. Its totient is φ = 20486533093520.

The previous prime is 31103201311181. The next prime is 31103201311249. The reversal of 31103201311233 is 33211310230113.

It is a cyclic number.

It is not a de Polignac number, because 31103201311233 - 28 = 31103201310977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31103201311933) 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, 174234591 + ... + 174413012.

It is an arithmetic number, because the mean of its divisors is an integer number (2623224572496).

Almost surely, 231103201311233 is an apocalyptic number.

It is an amenable number.

31103201311233 is a deficient number, since it is larger than the sum of its proper divisors (10868391848703).

31103201311233 is a wasteful number, since it uses less digits than its factorization.

31103201311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348647964.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31103201311233 its reverse (33211310230113), we get a palindrome (64314511541346).

The spelling of 31103201311233 in words is "thirty-one trillion, one hundred three billion, two hundred one million, three hundred eleven thousand, two hundred thirty-three".

Divisors: 1 3 131 227 393 681 29737 89211 348647603 1045942809 45672835993 79143005881 137018507979 237429017643 10367733770411 31103201311233