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23101031331313 = 131826997268729
BaseRepresentation
bin1010100000010101000001…
…10001000011010111110001
310000210102210121000011221121
411100022200301003113301
511011441403010100223
6121044244533422241
74602665043310225
oct520124061032761
9100712717004847
1023101031331313
1173a7101a42341
12271117479a981
13cb75581b0490
1459c14b15a785
152a0d9e13415d
hex1502a0c435f1

23101031331313 has 8 divisors (see below), whose sum is σ = 24879395759400. Its totient is φ = 21322861477248.

The previous prime is 23101031331281. The next prime is 23101031331319. The reversal of 23101031331313 is 31313313010132.

It can be written as a sum of positive squares in 4 ways, for example, as 1371374497249 + 21729656834064 = 1171057^2 + 4661508^2 .

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 23101031331313 - 25 = 23101031331281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23101031331319) 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, 48396868 + ... + 48871861.

It is an arithmetic number, because the mean of its divisors is an integer number (3109924469925).

Almost surely, 223101031331313 is an apocalyptic number.

It is an amenable number.

23101031331313 is a deficient number, since it is larger than the sum of its proper divisors (1778364428087).

23101031331313 is a wasteful number, since it uses less digits than its factorization.

23101031331313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97287011.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 23101031331313 its reverse (31313313010132), we get a palindrome (54414344341445).

The spelling of 23101031331313 in words is "twenty-three trillion, one hundred one billion, thirty-one million, three hundred thirty-one thousand, three hundred thirteen".

Divisors: 1 13 18269 237497 97268729 1264493477 1777002410101 23101031331313