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121120013023 = 4991993121789
BaseRepresentation
bin111000011001101010…
…0001011101011011111
3102120122001200011112021
41300303110023223133
53441023210404043
6131350342121011
711515316060332
oct1606324135337
9376561604467
10121120013023
11474040a9519
121b582a20167
13b563254379
145c0ddb4619
15323d4913ed
hex1c3350badf

121120013023 has 8 divisors (see below), whose sum is σ = 121424630000. Its totient is φ = 120815644608.

The previous prime is 121120012987. The next prime is 121120013041. The reversal of 121120013023 is 320310021121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-121120013023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121120012988 and 121120013006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121120013323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933613 + ... + 1055401.

It is an arithmetic number, because the mean of its divisors is an integer number (15178078750).

Almost surely, 2121120013023 is an apocalyptic number.

121120013023 is a deficient number, since it is larger than the sum of its proper divisors (304616977).

121120013023 is a wasteful number, since it uses less digits than its factorization.

121120013023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124281.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121120013023 its reverse (320310021121), we get a palindrome (441430034144).

The spelling of 121120013023 in words is "one hundred twenty-one billion, one hundred twenty million, thirteen thousand, twenty-three".

Divisors: 1 499 1993 121789 994507 60772711 242725477 121120013023