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1203230311213 = 73127241114613
BaseRepresentation
bin10001100000100110000…
…111011000001100101101
311021000202012002220220111
4101200212013120030231
5124203203424424323
62320431213220021
7152634111616000
oct21404607301455
94230665086814
101203230311213
11424318162787
1217523b491611
138960590a068
1442345563537
15214735c4c0d
hex118261d832d

1203230311213 has 32 divisors (see below), whose sum is σ = 1420113305600. Its totient is φ = 1018964862720.

The previous prime is 1203230311189. The next prime is 1203230311247. The reversal of 1203230311213 is 3121130323021.

It is not a de Polignac number, because 1203230311213 - 221 = 1203228214061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203230311273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10440895 + ... + 10555507.

It is an arithmetic number, because the mean of its divisors is an integer number (44378540800).

Almost surely, 21203230311213 is an apocalyptic number.

It is an amenable number.

1203230311213 is a deficient number, since it is larger than the sum of its proper divisors (216882994387).

1203230311213 is a wasteful number, since it uses less digits than its factorization.

1203230311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115002 (or 114988 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1203230311213 its reverse (3121130323021), we get a palindrome (4324360634234).

The spelling of 1203230311213 in words is "one trillion, two hundred three billion, two hundred thirty million, three hundred eleven thousand, two hundred thirteen".

Divisors: 1 7 49 127 241 343 889 1687 6223 11809 30607 43561 82663 114613 214249 802291 1499743 5616037 10498201 14555851 27621733 39312259 101890957 193352131 713236699 1353464917 3507960091 4992656893 9474254419 24555720637 171890044459 1203230311213