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1231312114 = 24793128449
BaseRepresentation
bin100100101100100…
…0101010011110010
310011210221010200101
41021121011103302
510010203441424
6322103143014
742340660144
oct11131052362
93153833611
101231312114
1158205301a
122a4444a6a
13168138766
14b9760c94
1573173344
hex496454f2

1231312114 has 8 divisors (see below), whose sum is σ = 1847367900. Its totient is φ = 615522816.

The previous prime is 1231312111. The next prime is 1231312151. The reversal of 1231312114 is 4112131321.

It can be written as a sum of positive squares in 2 ways, for example, as 1177656489 + 53655625 = 34317^2 + 7325^2 .

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

It is a super-2 number, since 2×12313121142 = 3032259044166297992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231312091 and 1231312100.

It is not an unprimeable number, because it can be changed into a prime (1231312111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54639 + ... + 73810.

Almost surely, 21231312114 is an apocalyptic number.

1231312114 is a deficient number, since it is larger than the sum of its proper divisors (616055786).

1231312114 is a wasteful number, since it uses less digits than its factorization.

1231312114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133244.

The product of its digits is 144, while the sum is 19.

The square root of 1231312114 is about 35090.0571957357. The cubic root of 1231312114 is about 1071.8221242935.

Adding to 1231312114 its reverse (4112131321), we get a palindrome (5343443435).

The spelling of 1231312114 in words is "one billion, two hundred thirty-one million, three hundred twelve thousand, one hundred fourteen".

Divisors: 1 2 4793 9586 128449 256898 615656057 1231312114