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231322031030120 = 2355783050775753
BaseRepresentation
bin110100100110001011011011…
…011111001111111101101000
31010100001011121001221120002012
4310212023123133033331220
5220304440004420430440
62135551512441455052
766503315400243062
oct6446133337177550
91110034531846065
10231322031030120
1167785138a665a8
1221b3b9141a1488
139c0c75cbc0354
14411a090496732
151bb233be9ae65
hexd262db7cff68

231322031030120 has 16 divisors (see below), whose sum is σ = 520474569817860. Its totient is φ = 92528812412032.

The previous prime is 231322031030059. The next prime is 231322031030141. The reversal of 231322031030120 is 21030130223132.

It can be written as a sum of positive squares in 2 ways, for example, as 208988599647844 + 22333431382276 = 14456438^2 + 4725826^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2891525387837 + ... + 2891525387916.

Almost surely, 2231322031030120 is an apocalyptic number.

231322031030120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231322031030120 is an abundant number, since it is smaller than the sum of its proper divisors (289152538787740).

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

231322031030120 is a wasteful number, since it uses less digits than its factorization.

231322031030120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783050775764 (or 5783050775760 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231322031030120 its reverse (21030130223132), we get a palindrome (252352161253252).

The spelling of 231322031030120 in words is "two hundred thirty-one trillion, three hundred twenty-two billion, thirty-one million, thirty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 5783050775753 11566101551506 23132203103012 28915253878765 46264406206024 57830507757530 115661015515060 231322031030120