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231323111113 = 7918771560011
BaseRepresentation
bin1101011101101111101…
…1101000111011001001
3211010002022020121002211
43113123323220323021
512242222204023423
6254133545025121
722466255000443
oct3273373507311
9733068217084
10231323111113
118a115958196
12389b97851a1
1318a76851753
14b2a6145493
15603d30610d
hex35dbee8ec9

231323111113 has 8 divisors (see below), whose sum is σ = 234376202880. Its totient is φ = 228273143280.

The previous prime is 231323111099. The next prime is 231323111119. The reversal of 231323111113 is 311111323132.

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

It is a cyclic number.

It is not a de Polignac number, because 231323111113 - 25 = 231323111081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231323111119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 631723 + ... + 928288.

It is an arithmetic number, because the mean of its divisors is an integer number (29297025360).

Almost surely, 2231323111113 is an apocalyptic number.

It is an amenable number.

231323111113 is a deficient number, since it is larger than the sum of its proper divisors (3053091767).

231323111113 is a wasteful number, since it uses less digits than its factorization.

231323111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561967.

The product of its digits is 324, while the sum is 22.

Adding to 231323111113 its reverse (311111323132), we get a palindrome (542434434245).

The spelling of 231323111113 in words is "two hundred thirty-one billion, three hundred twenty-three million, one hundred eleven thousand, one hundred thirteen".

Divisors: 1 79 1877 148283 1560011 123240869 2928140647 231323111113