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10321131213 = 351491971447
BaseRepresentation
bin10011001110010111…
…11111011011001101
3222122022000210100000
421213023333123031
5132114202144323
64424053354513
7513524111361
oct114713773315
928568023300
1010321131213
114417011708
122000638a39
13c863a6543
146dca772a1
15406192e43
hex2672ff6cd

10321131213 has 48 divisors (see below), whose sum is σ = 15654038400. Its totient is φ = 6795182016.

The previous prime is 10321131211. The next prime is 10321131217. The reversal of 10321131213 is 31213112301.

10321131213 is a `hidden beast` number, since 1 + 0 + 321 + 131 + 213 = 666.

It is not a de Polignac number, because 10321131213 - 21 = 10321131211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10321131211) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7132056 + ... + 7133502.

It is an arithmetic number, because the mean of its divisors is an integer number (326125800).

Almost surely, 210321131213 is an apocalyptic number.

It is an amenable number.

10321131213 is a deficient number, since it is larger than the sum of its proper divisors (5332907187).

10321131213 is a wasteful number, since it uses less digits than its factorization.

10321131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1808 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 10321131213 its reverse (31213112301), we get a palindrome (41534243514).

The spelling of 10321131213 in words is "ten billion, three hundred twenty-one million, one hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 9 27 81 149 197 243 447 591 1341 1447 1773 4023 4341 5319 12069 13023 15957 29353 36207 39069 47871 88059 117207 215603 264177 285059 351621 646809 792531 855177 1940427 2377593 2565531 5821281 7132779 7696593 17463843 23089779 42473791 52391529 69269337 127421373 382264119 1146792357 3440377071 10321131213