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1110312302021 = 1385408638617
BaseRepresentation
bin10000001010000011110…
…001010011010111000101
310221010220120110222200122
4100022003301103113011
5121142404422131041
62210023113551325
7143134400564006
oct20120361232705
93833816428618
101110312302021
1139897639214a
1215b229415545
13809183acb30
143ba4ccc31ad
151dd35e9cc4b
hex10283c535c5

1110312302021 has 4 divisors (see below), whose sum is σ = 1195720940652. Its totient is φ = 1024903663392.

The previous prime is 1110312302017. The next prime is 1110312302023. The reversal of 1110312302021 is 1202032130111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 727974129796 + 382338172225 = 853214^2 + 618335^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110312302021 - 22 = 1110312302017 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 (1110312302023) 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 3 ways as a sum of consecutive naturals, for example, 42704319296 + ... + 42704319321.

It is an arithmetic number, because the mean of its divisors is an integer number (298930235163).

Almost surely, 21110312302021 is an apocalyptic number.

It is an amenable number.

1110312302021 is a deficient number, since it is larger than the sum of its proper divisors (85408638631).

1110312302021 is an equidigital number, since it uses as much as digits as its factorization.

1110312302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85408638630.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1110312302021 its reverse (1202032130111), we get a palindrome (2312344432132).

The spelling of 1110312302021 in words is "one trillion, one hundred ten billion, three hundred twelve million, three hundred two thousand, twenty-one".

Divisors: 1 13 85408638617 1110312302021