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2311122001421 = 16777913774799
BaseRepresentation
bin100001101000011001100…
…110110001111000001101
322011221102001210002102202
4201220121212301320031
5300331134213021141
64525414221131245
7325654520611502
oct41503146617015
98157361702382
102311122001421
118111611343a2
12313ab20b9b25
13139c266654bc
147dc04b7d4a9
15401b6cc949b
hex21a199b1e0d

2311122001421 has 4 divisors (see below), whose sum is σ = 2311135944000. Its totient is φ = 2311108058844.

The previous prime is 2311122001399. The next prime is 2311122001579. The reversal of 2311122001421 is 1241002211132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2311122001421 - 226 = 2311054892557 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311122001393 and 2311122001402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311122007421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6719621 + ... + 7055178.

It is an arithmetic number, because the mean of its divisors is an integer number (577783986000).

Almost surely, 22311122001421 is an apocalyptic number.

It is an amenable number.

2311122001421 is a deficient number, since it is larger than the sum of its proper divisors (13942579).

2311122001421 is a wasteful number, since it uses less digits than its factorization.

2311122001421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13942578.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2311122001421 its reverse (1241002211132), we get a palindrome (3552124212553).

The spelling of 2311122001421 in words is "two trillion, three hundred eleven billion, one hundred twenty-two million, one thousand, four hundred twenty-one".

Divisors: 1 167779 13774799 2311122001421