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10031123212311 = 313969912393507
BaseRepresentation
bin1001000111111000110110…
…0010010010100000010111
31022111222002020001020211110
42101332031202102200113
52303322220020243221
633200122343310103
72053503404314515
oct221761542224027
938458066036743
1010031123212311
1132181a25a7093
121160122a4b333
13579c1413a896
1426971a7d94b5
15125dec48a776
hex91f8d892817

10031123212311 has 8 divisors (see below), whose sum is σ = 13374846111744. Its totient is φ = 6687407893880.

The previous prime is 10031123212303. The next prime is 10031123212333. The reversal of 10031123212311 is 11321232113001.

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 10031123212311 - 23 = 10031123212303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10031123212351) 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, 2994220 + ... + 5387726.

It is an arithmetic number, because the mean of its divisors is an integer number (1671855763968).

Almost surely, 210031123212311 is an apocalyptic number.

10031123212311 is a deficient number, since it is larger than the sum of its proper divisors (3343722899433).

10031123212311 is a wasteful number, since it uses less digits than its factorization.

10031123212311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3790501.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 10031123212311 its reverse (11321232113001), we get a palindrome (21352355325312).

The spelling of 10031123212311 in words is "ten trillion, thirty-one billion, one hundred twenty-three million, two hundred twelve thousand, three hundred eleven".

Divisors: 1 3 1396991 2393507 4190973 7180521 3343707737437 10031123212311