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130120231331 = 290344822677
BaseRepresentation
bin111100100101111000…
…1010010100110100011
3110102212022011122000002
41321023301102212203
54112441234400311
6135435412050215
712254333501006
oct1711361224643
9412768148002
10130120231331
1150202529772
122127500396b
13c368a7cb2c
14642544553d
1535b86b293b
hex1e4bc529a3

130120231331 has 4 divisors (see below), whose sum is σ = 130165056912. Its totient is φ = 130075405752.

The previous prime is 130120231321. The next prime is 130120231361. The reversal of 130120231331 is 133132021031.

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 130120231331 - 226 = 130053122467 is a prime.

It is a super-2 number, since 2×1301202313312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130120231321) 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 3 ways as a sum of consecutive naturals, for example, 22408436 + ... + 22414241.

It is an arithmetic number, because the mean of its divisors is an integer number (32541264228).

Almost surely, 2130120231331 is an apocalyptic number.

130120231331 is a deficient number, since it is larger than the sum of its proper divisors (44825581).

130120231331 is an equidigital number, since it uses as much as digits as its factorization.

130120231331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44825580.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 130120231331 its reverse (133132021031), we get a palindrome (263252252362).

The spelling of 130120231331 in words is "one hundred thirty billion, one hundred twenty million, two hundred thirty-one thousand, three hundred thirty-one".

Divisors: 1 2903 44822677 130120231331