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1312230022313 = 72231164356719
BaseRepresentation
bin10011000110000111000…
…000010001110010101001
311122110002120021221212112
4103012013000101302221
5132444421341203223
62442455151252105
7163543166103200
oct23060700216251
94573076257775
101312230022313
11466571701a51
1219239b21a035
1396986ac8432
1447725962237
1524202980778
hex13187011ca9

1312230022313 has 12 divisors (see below), whose sum is σ = 1592839992960. Its totient is φ = 1075865607432.

The previous prime is 1312230022283. The next prime is 1312230022339. The reversal of 1312230022313 is 3132200322131.

It is not a de Polignac number, because 1312230022313 - 224 = 1312213245097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312230022343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 582177233 + ... + 582179486.

It is an arithmetic number, because the mean of its divisors is an integer number (132736666080).

Almost surely, 21312230022313 is an apocalyptic number.

It is an amenable number.

1312230022313 is a deficient number, since it is larger than the sum of its proper divisors (280609970647).

1312230022313 is a wasteful number, since it uses less digits than its factorization.

1312230022313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164356756 (or 1164356749 counting only the distinct ones).

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

Adding to 1312230022313 its reverse (3132200322131), we get a palindrome (4444430344444).

The spelling of 1312230022313 in words is "one trillion, three hundred twelve billion, two hundred thirty million, twenty-two thousand, three hundred thirteen".

Divisors: 1 7 23 49 161 1127 1164356719 8150497033 26780204537 57053479231 187461431759 1312230022313