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1030230012121 = 2050950233069
BaseRepresentation
bin11101111110111100111…
…11100111000011011001
310122111012111112011011121
432333132133213003121
5113334402340341441
62105140420325241
7134301026421112
oct16773637470331
93574174464147
101030230012121
11367a10a90492
121477b9b43821
13761c51c558b
1437c13247209
151bbea676dd1
hexefde7e70d9

1030230012121 has 4 divisors (see below), whose sum is σ = 1030280265700. Its totient is φ = 1030179758544.

The previous prime is 1030230012109. The next prime is 1030230012127. The reversal of 1030230012121 is 1212100320301.

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 291556801600 + 738673210521 = 539960^2 + 859461^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030230012121 - 215 = 1030229979353 is a prime.

It is a super-2 number, since 2×10302300121212 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030230012095 and 1030230012104.

It is not an unprimeable number, because it can be changed into a prime (1030230012127) 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, 25096026 + ... + 25137043.

It is an arithmetic number, because the mean of its divisors is an integer number (257570066425).

Almost surely, 21030230012121 is an apocalyptic number.

It is an amenable number.

1030230012121 is a deficient number, since it is larger than the sum of its proper divisors (50253579).

1030230012121 is an equidigital number, since it uses as much as digits as its factorization.

1030230012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50253578.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1030230012121 its reverse (1212100320301), we get a palindrome (2242330332422).

The spelling of 1030230012121 in words is "one trillion, thirty billion, two hundred thirty million, twelve thousand, one hundred twenty-one".

Divisors: 1 20509 50233069 1030230012121