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1230122131 = 7386345491
BaseRepresentation
bin100100101010010…
…0010110010010011
310011201200200022221
41021110202302103
510004402402011
6322021441511
742324602620
oct11124426223
93151620287
101230122131
1158140aa67
122a3b70297
13167b0cc24
14b9531347
1572eda971
hex49522c93

1230122131 has 8 divisors (see below), whose sum is σ = 1406248704. Its totient is φ = 1054094280.

The previous prime is 1230122123. The next prime is 1230122141. The reversal of 1230122131 is 1312210321.

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 1230122131 - 23 = 1230122123 is a prime.

It is a super-2 number, since 2×12301221312 = 3026400914351962322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230122141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4296 + ... + 49786.

It is an arithmetic number, because the mean of its divisors is an integer number (175781088).

Almost surely, 21230122131 is an apocalyptic number.

1230122131 is a deficient number, since it is larger than the sum of its proper divisors (176126573).

1230122131 is an equidigital number, since it uses as much as digits as its factorization.

1230122131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49361.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1230122131 is about 35073.0969690445. The cubic root of 1230122131 is about 1071.4767309002.

Adding to 1230122131 its reverse (1312210321), we get a palindrome (2542332452).

The spelling of 1230122131 in words is "one billion, two hundred thirty million, one hundred twenty-two thousand, one hundred thirty-one".

Divisors: 1 7 3863 27041 45491 318437 175731733 1230122131