Search a number
-
+
32121211331 = 113391186111
BaseRepresentation
bin11101111010100100…
…101100100111000011
310001220120201121021202
4131322210230213003
51011241012230311
622431205011415
72214664535306
oct357244544703
9101816647252
1032121211331
111269364a550
1262853b3b6b
13304b99b831
1417aa056b3d
15c7ee80e3b
hex77a92c9c3

32121211331 has 8 divisors (see below), whose sum is σ = 35042761728. Its totient is φ = 29199901000.

The previous prime is 32121211327. The next prime is 32121211393. The reversal of 32121211331 is 13311212123.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32121211331 - 22 = 32121211327 is a prime.

It is a super-2 number, since 2×321212113312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32121211631) 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 7 ways as a sum of consecutive naturals, for example, 329966 + ... + 416076.

It is an arithmetic number, because the mean of its divisors is an integer number (4380345216).

Almost surely, 232121211331 is an apocalyptic number.

32121211331 is a deficient number, since it is larger than the sum of its proper divisors (2921550397).

32121211331 is a wasteful number, since it uses less digits than its factorization.

32121211331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120033.

The product of its digits is 216, while the sum is 20.

Adding to 32121211331 its reverse (13311212123), we get a palindrome (45432423454).

The spelling of 32121211331 in words is "thirty-two billion, one hundred twenty-one million, two hundred eleven thousand, three hundred thirty-one".

Divisors: 1 11 33911 86111 373021 947221 2920110121 32121211331