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12142213031 = 131019247687
BaseRepresentation
bin10110100111011101…
…10111011110100111
31011100012201022221202
423103232313132213
5144331401304111
65324505433115
7606616051664
oct132356673647
934305638852
1012142213031
115170a65403
12242a49b79b
1311b6768250
1483287aa6b
154b0eb2b3b
hex2d3bb77a7

12142213031 has 8 divisors (see below), whose sum is σ = 13205698464. Its totient is φ = 11097223200.

The previous prime is 12142213001. The next prime is 12142213037. The reversal of 12142213031 is 13031224121.

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 12142213031 - 26 = 12142212967 is a prime.

It is a super-2 number, since 2×121422130312 (a number of 21 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 = 12142212994 and 12142213012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12142213037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4622531 + ... + 4625156.

It is an arithmetic number, because the mean of its divisors is an integer number (1650712308).

Almost surely, 212142213031 is an apocalyptic number.

12142213031 is a deficient number, since it is larger than the sum of its proper divisors (1063485433).

12142213031 is a wasteful number, since it uses less digits than its factorization.

12142213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9247801.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12142213031 its reverse (13031224121), we get a palindrome (25173437152).

The spelling of 12142213031 in words is "twelve billion, one hundred forty-two million, two hundred thirteen thousand, thirty-one".

Divisors: 1 13 101 1313 9247687 120219931 934016387 12142213031