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31130322032213 = 314049248012827
BaseRepresentation
bin1110001010000000101111…
…10010010101011001010101
311002020000210200000100201222
413011000113302111121111
513040014344420012323
6150113023355100125
76362043254214065
oct705002762253125
9132200720010658
1031130322032213
119a123282486a8
1235a9321a41645
13144a766222801
14798a039693a5
1538eb877b59c8
hex1c5017c95655

31130322032213 has 8 divisors (see below), whose sum is σ = 32142462508800. Its totient is φ = 30118677589440.

The previous prime is 31130322032189. The next prime is 31130322032231. The reversal of 31130322032213 is 31223022303113.

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 31130322032213 - 234 = 31113142163029 is a prime.

It is a super-2 number, since 2×311303220322132 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130322034213) 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, 123880895 + ... + 124131932.

It is an arithmetic number, because the mean of its divisors is an integer number (4017807813600).

Almost surely, 231130322032213 is an apocalyptic number.

It is an amenable number.

31130322032213 is a deficient number, since it is larger than the sum of its proper divisors (1012140476587).

31130322032213 is a wasteful number, since it uses less digits than its factorization.

31130322032213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248016907.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31130322032213 its reverse (31223022303113), we get a palindrome (62353344335326).

The spelling of 31130322032213 in words is "thirty-one trillion, one hundred thirty billion, three hundred twenty-two million, thirty-two thousand, two hundred thirteen".

Divisors: 1 31 4049 125519 248012827 7688397637 1004203936523 31130322032213