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131030302211 = 332939360259
BaseRepresentation
bin111101000001000000…
…0111011111000000011
3110112012201122000112222
41322002000323320003
54121322224132321
6140110002041255
712316024122614
oct1720200737003
9415181560488
10131030302211
115062a20a466
122148994922b
13c482491403
1464b0263c0b
15361d52d3ab
hex1e8203be03

131030302211 has 4 divisors (see below), whose sum is σ = 131069665800. Its totient is φ = 130990938624.

The previous prime is 131030302199. The next prime is 131030302213. The reversal of 131030302211 is 112203030131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131030302211 - 218 = 131030040067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131030302211.

It is not an unprimeable number, because it can be changed into a prime (131030302213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19676801 + ... + 19683458.

It is an arithmetic number, because the mean of its divisors is an integer number (32767416450).

Almost surely, 2131030302211 is an apocalyptic number.

131030302211 is a deficient number, since it is larger than the sum of its proper divisors (39363589).

131030302211 is an equidigital number, since it uses as much as digits as its factorization.

131030302211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39363588.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131030302211 its reverse (112203030131), we get a palindrome (243233332342).

The spelling of 131030302211 in words is "one hundred thirty-one billion, thirty million, three hundred two thousand, two hundred eleven".

Divisors: 1 3329 39360259 131030302211