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121023330031 = 1917935584631
BaseRepresentation
bin111000010110110001…
…1010111011011101111
3102120101022202011101201
41300231203113123233
53440323433030111
6131333005550331
711513033221612
oct1605543273357
9376338664351
10121023330031
114736457311a
121b5565753a7
13b5492025b6
145c01208179
153234c446c1
hex1c2d8d76ef

121023330031 has 8 divisors (see below), whose sum is σ = 128104675200. Its totient is φ = 114013154520.

The previous prime is 121023330019. The next prime is 121023330049. The reversal of 121023330031 is 130033320121.

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 121023330031 - 233 = 112433395439 is a prime.

It is a super-3 number, since 3×1210233300313 (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121023329990 and 121023330008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121023330331) 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, 17788915 + ... + 17795716.

It is an arithmetic number, because the mean of its divisors is an integer number (16013084400).

Almost surely, 2121023330031 is an apocalyptic number.

121023330031 is a deficient number, since it is larger than the sum of its proper divisors (7081345169).

121023330031 is a wasteful number, since it uses less digits than its factorization.

121023330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35584829.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 121023330031 its reverse (130033320121), we get a palindrome (251056650152).

The spelling of 121023330031 in words is "one hundred twenty-one billion, twenty-three million, three hundred thirty thousand, thirty-one".

Divisors: 1 19 179 3401 35584631 676107989 6369648949 121023330031