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13121023230323 = 19732891456057
BaseRepresentation
bin1011111011101111100111…
…1011011100000101110011
31201110100122200001121220022
42332323321323130011303
53204433323421332243
643523414224234055
72522651121156521
oct276737173340563
951410580047808
1013121023230323
1141a965a604a08
12157ab3816b92b
137423cbb544c8
143350bd205311
1517b4943abb68
hexbeef9edc173

13121023230323 has 24 divisors (see below), whose sum is σ = 14160746473200. Its totient is φ = 12122400052224.

The previous prime is 13121023230307. The next prime is 13121023230391. The reversal of 13121023230323 is 32303232012131.

It is not a de Polignac number, because 13121023230323 - 24 = 13121023230307 is a prime.

It is a super-2 number, since 2×131210232303232 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13121023230292 and 13121023230301.

It is not an unprimeable number, because it can be changed into a prime (13121023230823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8283311 + ... + 9739367.

It is an arithmetic number, because the mean of its divisors is an integer number (590031103050).

Almost surely, 213121023230323 is an apocalyptic number.

13121023230323 is a deficient number, since it is larger than the sum of its proper divisors (1039723242877).

13121023230323 is an equidigital number, since it uses as much as digits as its factorization.

13121023230323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456311 (or 1456238 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 13121023230323 its reverse (32303232012131), we get a palindrome (45424255242454).

The spelling of 13121023230323 in words is "thirteen trillion, one hundred twenty-one billion, twenty-three million, two hundred thirty thousand, three hundred twenty-three".

Divisors: 1 19 73 89 1387 1691 5329 6497 101251 123443 474281 1456057 9011339 27665083 106292161 129589073 2019551059 2462192387 7759327753 9460002329 147427227307 179740044251 690580170017 13121023230323