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2121233023 = 71323310253
BaseRepresentation
bin111111001101111…
…0111001001111111
312110211110210200001
41332123313021333
513321013424043
6550253215131
7103365116560
oct17633671177
95424423601
102121233023
11999420848
124b24914a7
1327a613590
14161a16167
15c635d74d
hex7e6f727f

2121233023 has 8 divisors (see below), whose sum is σ = 2610748448. Its totient is φ = 1678338144.

The previous prime is 2121232961. The next prime is 2121233027. The reversal of 2121233023 is 3203321212.

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

It is a de Polignac number, because none of the positive numbers 2k-2121233023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121233027) 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 7 ways as a sum of consecutive naturals, for example, 11655036 + ... + 11655217.

It is an arithmetic number, because the mean of its divisors is an integer number (326343556).

Almost surely, 22121233023 is an apocalyptic number.

2121233023 is a deficient number, since it is larger than the sum of its proper divisors (489515425).

2121233023 is a wasteful number, since it uses less digits than its factorization.

2121233023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23310273.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2121233023 is about 46056.8455606764. The cubic root of 2121233023 is about 1284.8806629626.

Adding to 2121233023 its reverse (3203321212), we get a palindrome (5324554235).

It can be divided in two parts, 212 and 1233023, that added together give a triangular number (1233235 = T1570).

The spelling of 2121233023 in words is "two billion, one hundred twenty-one million, two hundred thirty-three thousand, twenty-three".

Divisors: 1 7 13 91 23310253 163171771 303033289 2121233023