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12103120122031 = 157300125688083
BaseRepresentation
bin1011000000011111101000…
…1011001111000010101111
31120212001021020210001211101
42300013322023033002233
53041244142222401111
641424032512103531
72356264412413501
oct260077213170257
946761236701741
1012103120122031
1139469a4865854
1214357ba534ba7
1369a41c751183
142dbb19193d71
1515ec6b02abc1
hexb01fa2cf0af

12103120122031 has 8 divisors (see below), whose sum is σ = 12184269250544. Its totient is φ = 12022022376000.

The previous prime is 12103120122011. The next prime is 12103120122061. The reversal of 12103120122031 is 13022102130121.

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 12103120122031 - 223 = 12103111733423 is a prime.

It is a super-2 number, since 2×121031201220312 (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 (12103120122001) 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, 12372885 + ... + 13315198.

It is an arithmetic number, because the mean of its divisors is an integer number (1523033656318).

Almost surely, 212103120122031 is an apocalyptic number.

12103120122031 is a deficient number, since it is larger than the sum of its proper divisors (81149128513).

12103120122031 is a wasteful number, since it uses less digits than its factorization.

12103120122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25691241.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12103120122031 its reverse (13022102130121), we get a palindrome (25125222252152).

The spelling of 12103120122031 in words is "twelve trillion, one hundred three billion, one hundred twenty million, one hundred twenty-two thousand, thirty-one".

Divisors: 1 157 3001 471157 25688083 4033029031 77089937083 12103120122031