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130221400231 = 1346512153737
BaseRepresentation
bin111100101000111001…
…1001110000010100111
3110110010100112112122101
41321101303032002213
54113143134301411
6135453424312531
712260002432036
oct1712163160247
9413110475571
10130221400231
115025464942a
12212a2a72747
13c383a126a0
146434a5c71d
1535c24e88c1
hex1e51cce0a7

130221400231 has 8 divisors (see below), whose sum is σ = 140268648464. Its totient is φ = 120178468800.

The previous prime is 130221400159. The next prime is 130221400237. The reversal of 130221400231 is 132004122031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130221400231 - 213 = 130221392039 is a prime.

It is a super-2 number, since 2×1302214002312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130221400199 and 130221400208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130221400237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1016406 + ... + 1137331.

It is an arithmetic number, because the mean of its divisors is an integer number (17533581058).

Almost surely, 2130221400231 is an apocalyptic number.

130221400231 is a deficient number, since it is larger than the sum of its proper divisors (10047248233).

130221400231 is a wasteful number, since it uses less digits than its factorization.

130221400231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158401.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 130221400231 its reverse (132004122031), we get a palindrome (262225522262).

The spelling of 130221400231 in words is "one hundred thirty billion, two hundred twenty-one million, four hundred thousand, two hundred thirty-one".

Divisors: 1 13 4651 60463 2153737 27998581 10017030787 130221400231