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31001233131130 = 25171531119111819
BaseRepresentation
bin1110000110010000010010…
…11111010000011001111010
311001202200121020110201212111
413003020021133100121322
513030411011140144010
6145533434144002534
76346523312522563
oct703101137203172
9131680536421774
1031001233131130
1199726049a1689
1235882b630044a
13143b53302c482
147926794a916a
1538b62e92258a
hex1c32097d067a

31001233131130 has 32 divisors (see below), whose sum is σ = 59123295869760. Its totient is φ = 11663429218560.

The previous prime is 31001233131097. The next prime is 31001233131131. The reversal of 31001233131130 is 3113133210013.

It is a super-2 number, since 2×310012331311302 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31001233131131) 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, 59295640 + ... + 59816179.

It is an arithmetic number, because the mean of its divisors is an integer number (1847602995930).

Almost surely, 231001233131130 is an apocalyptic number.

31001233131130 is a deficient number, since it is larger than the sum of its proper divisors (28122062738630).

31001233131130 is a wasteful number, since it uses less digits than its factorization.

31001233131130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119113374.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 31001233131130 its reverse (3113133210013), we get a palindrome (34114366341143).

The spelling of 31001233131130 in words is "thirty-one trillion, one billion, two hundred thirty-three million, one hundred thirty-one thousand, one hundred thirty".

Divisors: 1 2 5 10 17 34 85 170 1531 3062 7655 15310 26027 52054 130135 260270 119111819 238223638 595559095 1191118190 2024900923 4049801846 10124504615 20249009230 182360194889 364720389778 911800974445 1823601948890 3100123313113 6200246626226 15500616565565 31001233131130