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131023013230 = 2514767887269
BaseRepresentation
bin111101000000110010…
…1001000010101101110
3110112012012220200221201
41322001211020111232
54121313342410410
6140105141520114
712315605144134
oct1720145102556
9415165820851
10131023013230
115062609110a
122148741303a
13c480b0b7c5
1464ad2c7754
15361ca8d83a
hex1e8194856e

131023013230 has 16 divisors (see below), whose sum is σ = 235857660480. Its totient is φ = 52405597152.

The previous prime is 131023013201. The next prime is 131023013249. The reversal of 131023013230 is 32310320131.

It is a junction number, because it is equal to n+sod(n) for n = 131023013198 and 131023013207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295965 + ... + 591304.

It is an arithmetic number, because the mean of its divisors is an integer number (14741103780).

Almost surely, 2131023013230 is an apocalyptic number.

131023013230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131023013230 is a deficient number, since it is larger than the sum of its proper divisors (104834647250).

131023013230 is a wasteful number, since it uses less digits than its factorization.

131023013230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902043.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131023013230 its reverse (32310320131), we get a palindrome (163333333361).

The spelling of 131023013230 in words is "one hundred thirty-one billion, twenty-three million, thirteen thousand, two hundred thirty".

Divisors: 1 2 5 10 14767 29534 73835 147670 887269 1774538 4436345 8872690 13102301323 26204602646 65511506615 131023013230