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2331023120231 = 13316037958121
BaseRepresentation
bin100001111010111011110…
…011100001011101100111
322020211210000020200012012
4201322323303201131213
5301142413404321411
64542505055144435
7330260632413161
oct41727363413547
98224700220165
102331023120231
11819643866523
12317926b1511b
1313ba786cb950
1480b71c85931
154097e01218b
hex21ebbce1767

2331023120231 has 16 divisors (see below), whose sum is σ = 2591743004928. Its totient is φ = 2081956435200.

The previous prime is 2331023120213. The next prime is 2331023120249. The reversal of 2331023120231 is 1320213201332.

It is an interprime number because it is at equal distance from previous prime (2331023120213) and next prime (2331023120249).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2331023120231 is a prime.

It is a super-2 number, since 2×23310231202312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2331023120197 and 2331023120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331023140231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953851 + ... + 2911971.

It is an arithmetic number, because the mean of its divisors is an integer number (161983937808).

Almost surely, 22331023120231 is an apocalyptic number.

2331023120231 is a deficient number, since it is larger than the sum of its proper divisors (260719884697).

2331023120231 is a wasteful number, since it uses less digits than its factorization.

2331023120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964202.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2331023120231 its reverse (1320213201332), we get a palindrome (3651236321563).

The spelling of 2331023120231 in words is "two trillion, three hundred thirty-one billion, twenty-three million, one hundred twenty thousand, two hundred thirty-one".

Divisors: 1 13 31 403 6037 78481 187147 958121 2432911 12455573 29701751 386122763 5784176477 75194294201 179309470787 2331023120231