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131030102120 = 2353275752553
BaseRepresentation
bin111101000001000000…
…0001011000001101000
3110112012201020212002012
41322002000023001220
54121322201231440
6140105553455052
712316022330351
oct1720200130150
9415181225065
10131030102120
115062a0930a5
1221489871488
13c482421308
1464b0210d28
15361d4dde65
hex1e8200b068

131030102120 has 16 divisors (see below), whose sum is σ = 294817729860. Its totient is φ = 52412040832.

The previous prime is 131030102087. The next prime is 131030102129. The reversal of 131030102120 is 21201030131.

131030102120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 114748852516 + 16281249604 = 338746^2 + 127598^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131030102095 and 131030102104.

It is not an unprimeable number, because it can be changed into a prime (131030102129) 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, 1637876237 + ... + 1637876316.

Almost surely, 2131030102120 is an apocalyptic number.

131030102120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131030102120 is an abundant number, since it is smaller than the sum of its proper divisors (163787627740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131030102120 is a wasteful number, since it uses less digits than its factorization.

131030102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3275752564 (or 3275752560 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 131030102120 its reverse (21201030131), we get a palindrome (152231132251).

The spelling of 131030102120 in words is "one hundred thirty-one billion, thirty million, one hundred two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 3275752553 6551505106 13103010212 16378762765 26206020424 32757525530 65515051060 131030102120