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12380630840831 = 111125511894621
BaseRepresentation
bin1011010000101001011100…
…0110100111010111111111
31121211120120110011020110202
42310022113012213113333
53110321012443401311
642155325553554115
72415320400535511
oct264122706472777
947746513136422
1012380630840831
113a43661390240
12147b54827593b
136ba6472597a6
1430b32358dbb1
151670ae15de3b
hexb42971a75ff

12380630840831 has 4 divisors (see below), whose sum is σ = 13506142735464. Its totient is φ = 11255118946200.

The previous prime is 12380630840819. The next prime is 12380630840833. The reversal of 12380630840831 is 13804803608321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12380630840831 - 210 = 12380630839807 is a prime.

It is a super-2 number, since 2×123806308408312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12380630840833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 562755947300 + ... + 562755947321.

It is an arithmetic number, because the mean of its divisors is an integer number (3376535683866).

Almost surely, 212380630840831 is an apocalyptic number.

12380630840831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12380630840831 is a deficient number, since it is larger than the sum of its proper divisors (1125511894633).

12380630840831 is a wasteful number, since it uses less digits than its factorization.

12380630840831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125511894632.

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 12380630840831 in words is "twelve trillion, three hundred eighty billion, six hundred thirty million, eight hundred forty thousand, eight hundred thirty-one".

Divisors: 1 11 1125511894621 12380630840831