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131130120202 = 2237607374741
BaseRepresentation
bin111101000011111110…
…1101101100000001010
3110112110200110022002121
41322013331231200022
54122023302321302
6140123525321454
712321345426304
oct1720775554012
9415420408077
10131130120202
1150680597174
12214b726628a
13c49a070103
1464bd608974
153627198e37
hex1e87f6d80a

131130120202 has 16 divisors (see below), whose sum is σ = 205274673792. Its totient is φ = 62705993680.

The previous prime is 131130120139. The next prime is 131130120203. The reversal of 131130120202 is 202021031131.

It is not an unprimeable number, because it can be changed into a prime (131130120203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162552 + ... + 537292.

It is an arithmetic number, because the mean of its divisors is an integer number (12829667112).

Almost surely, 2131130120202 is an apocalyptic number.

131130120202 is a deficient number, since it is larger than the sum of its proper divisors (74144553590).

131130120202 is a wasteful number, since it uses less digits than its factorization.

131130120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382373.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131130120202 its reverse (202021031131), we get a palindrome (333151151333).

The spelling of 131130120202 in words is "one hundred thirty-one billion, one hundred thirty million, one hundred twenty thousand, two hundred two".

Divisors: 1 2 23 46 7607 15214 174961 349922 374741 749482 8619043 17238086 2850654787 5701309574 65565060101 131130120202