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1143300121 = 1459783619
BaseRepresentation
bin100010000100101…
…0110000000011001
32221200022122220221
41010021112000121
54320141100441
6305240520041
740221614335
oct10411260031
92850278827
101143300121
115373aa337
1227aa80021
13152b31662
14abbb07c5
156a58a8d1
hex44256019

1143300121 has 4 divisors (see below), whose sum is σ = 1144085200. Its totient is φ = 1142515044.

The previous prime is 1143300107. The next prime is 1143300131. The reversal of 1143300121 is 1210033411.

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 1143300121 - 215 = 1143267353 is a prime.

It is a super-2 number, since 2×11433001212 = 2614270333357229282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143300095 and 1143300104.

It is not an unprimeable number, because it can be changed into a prime (1143300131) 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, 390351 + ... + 393268.

It is an arithmetic number, because the mean of its divisors is an integer number (286021300).

Almost surely, 21143300121 is an apocalyptic number.

It is an amenable number.

1143300121 is a deficient number, since it is larger than the sum of its proper divisors (785079).

1143300121 is an equidigital number, since it uses as much as digits as its factorization.

1143300121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785078.

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

The square root of 1143300121 is about 33812.7212894792. The cubic root of 1143300121 is about 1045.6509824042.

Adding to 1143300121 its reverse (1210033411), we get a palindrome (2353333532).

The spelling of 1143300121 in words is "one billion, one hundred forty-three million, three hundred thousand, one hundred twenty-one".

Divisors: 1 1459 783619 1143300121