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1031212040213 = 3150980980783
BaseRepresentation
bin11110000000110010000…
…01110000000000010101
310122120201221101100110102
433000121001300000111
5113343410240241323
62105422100503445
7134334252500555
oct17003101600025
93576657340412
101031212040213
11368375349753
12147a329aab85
13763207ac4a4
1437ca7837165
151bc569a8328
hexf019070015

1031212040213 has 16 divisors (see below), whose sum is σ = 1067899852800. Its totient is φ = 994743085440.

The previous prime is 1031212040203. The next prime is 1031212040219. The reversal of 1031212040213 is 3120402121301.

It is a cyclic number.

It is not a de Polignac number, because 1031212040213 - 230 = 1030138298389 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 (1031212040219) 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 15 ways as a sum of consecutive naturals, for example, 12724820 + ... + 12805602.

It is an arithmetic number, because the mean of its divisors is an integer number (66743740800).

Almost surely, 21031212040213 is an apocalyptic number.

It is an amenable number.

1031212040213 is a deficient number, since it is larger than the sum of its proper divisors (36687812587).

1031212040213 is an equidigital number, since it uses as much as digits as its factorization.

1031212040213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82132.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1031212040213 its reverse (3120402121301), we get a palindrome (4151614161514).

The spelling of 1031212040213 in words is "one trillion, thirty-one billion, two hundred twelve million, forty thousand, two hundred thirteen".

Divisors: 1 31 509 809 15779 25079 80783 411781 2504273 12765211 41118547 65353447 1274674957 2025956857 33264904523 1031212040213