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BaseRepresentation
bin11110100101110101000…
…000101110001101101111
321102222011002012001110201
4132211311000232031233
5233420302221200221
64245423251214331
7304610346200332
oct36456500561557
97388132161421
102102202131311
117405a2331817
1229b5072a73a7
13123310370599
1473a66184619
1539a3a705891
hex1e97502e36f

2102202131311 has 4 divisors (see below), whose sum is σ = 2105883746824. Its totient is φ = 2098520515800.

The previous prime is 2102202131299. The next prime is 2102202131329. The reversal of 2102202131311 is 1131312022012.

Adding to 2102202131311 its reverse (1131312022012), we get a palindrome (3233514153323).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2102202131311 - 211 = 2102202129263 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 (2102202131611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1840806900 + ... + 1840808041.

It is an arithmetic number, because the mean of its divisors is an integer number (526470936706).

Almost surely, 22102202131311 is an apocalyptic number.

2102202131311 is a deficient number, since it is larger than the sum of its proper divisors (3681615513).

2102202131311 is an equidigital number, since it uses as much as digits as its factorization.

2102202131311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681615512.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 2102202131311 in words is "two trillion, one hundred two billion, two hundred two million, one hundred thirty-one thousand, three hundred eleven".

Divisors: 1 571 3681614941 2102202131311