Search a number
-
+
230331031032121 = 331695864142091
BaseRepresentation
bin110100010111110000011111…
…010010010001000100111001
31010012112102122120121121100121
4310113300133102101010321
5220142220422421011441
62133512340452333241
766341603445243655
oct6427603722210471
91105472576547317
10230331031032121
1167432929333398
12219bb844314221
139b6a17a3a59a6
1440c411d465a65
151b9668a911dd1
hexd17c1f491139

230331031032121 has 4 divisors (see below), whose sum is σ = 231026895174544. Its totient is φ = 229635166889700.

The previous prime is 230331031032019. The next prime is 230331031032139. The reversal of 230331031032121 is 121230130133032.

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 230331031032121 - 27 = 230331031031993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230331031032821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 347932070715 + ... + 347932071376.

It is an arithmetic number, because the mean of its divisors is an integer number (57756723793636).

Almost surely, 2230331031032121 is an apocalyptic number.

It is an amenable number.

230331031032121 is a deficient number, since it is larger than the sum of its proper divisors (695864142423).

230331031032121 is an equidigital number, since it uses as much as digits as its factorization.

230331031032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695864142422.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 230331031032121 its reverse (121230130133032), we get a palindrome (351561161165153).

The spelling of 230331031032121 in words is "two hundred thirty trillion, three hundred thirty-one billion, thirty-one million, thirty-two thousand, one hundred twenty-one".

Divisors: 1 331 695864142091 230331031032121