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1020103130311 = 1771357590647
BaseRepresentation
bin11101101100000101110…
…00100111110011000111
310121112001202000020220221
432312002320213303013
5113203132400132221
62100343502205211
7133462051353256
oct16660270476307
93545052006827
101020103130311
11363694694281
12145852583807
1375270141a15
14375322d679d
151b8065a4541
hexed82e27cc7

1020103130311 has 4 divisors (see below), whose sum is σ = 1020160738672. Its totient is φ = 1020045521952.

The previous prime is 1020103130243. The next prime is 1020103130369. The reversal of 1020103130311 is 1130313010201.

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 1020103130311 - 27 = 1020103130183 is a prime.

It is a super-2 number, since 2×10201031303112 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020103130411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28777611 + ... + 28813036.

It is an arithmetic number, because the mean of its divisors is an integer number (255040184668).

Almost surely, 21020103130311 is an apocalyptic number.

1020103130311 is a deficient number, since it is larger than the sum of its proper divisors (57608361).

1020103130311 is an equidigital number, since it uses as much as digits as its factorization.

1020103130311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57608360.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1020103130311 its reverse (1130313010201), we get a palindrome (2150416140512).

The spelling of 1020103130311 in words is "one trillion, twenty billion, one hundred three million, one hundred thirty thousand, three hundred eleven".

Divisors: 1 17713 57590647 1020103130311