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1212130033133 = 10501911542007
BaseRepresentation
bin10001101000111000100…
…101000111110111101101
311021212201102111122020212
4101220320211013313231
5124324420242030013
62324502253152205
7153400466166065
oct21507045076755
94255642448225
101212130033133
11428074892568
12176b03a8b665
138a3c367a0c6
144294b5143a5
15217e4a946a8
hex11a38947ded

1212130033133 has 4 divisors (see below), whose sum is σ = 1212141680160. Its totient is φ = 1212118386108.

The previous prime is 1212130033123. The next prime is 1212130033199. The reversal of 1212130033133 is 3313300312121.

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 1212130033133 - 28 = 1212130032877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212130033099 and 1212130033108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212130033123) 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, 5665985 + ... + 5876022.

It is an arithmetic number, because the mean of its divisors is an integer number (303035420040).

Almost surely, 21212130033133 is an apocalyptic number.

It is an amenable number.

1212130033133 is a deficient number, since it is larger than the sum of its proper divisors (11647027).

1212130033133 is a wasteful number, since it uses less digits than its factorization.

1212130033133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11647026.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 1212130033133 its reverse (3313300312121), we get a palindrome (4525430345254).

The spelling of 1212130033133 in words is "one trillion, two hundred twelve billion, one hundred thirty million, thirty-three thousand, one hundred thirty-three".

Divisors: 1 105019 11542007 1212130033133