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103011432121 = 1329273239873
BaseRepresentation
bin101111111101111110…
…1011011011010111001
3100211220001011221111201
41133323331123122321
53141431411311441
6115153420254201
710304501503663
oct1377375333271
9324801157451
10103011432121
113a7612a4684
1217b6a3a1361
139938697640
144db2da1533
152a2d7dac31
hex17fbf5b6b9

103011432121 has 8 divisors (see below), whose sum is σ = 114760747080. Its totient is φ = 91808596992.

The previous prime is 103011432109. The next prime is 103011432127. The reversal of 103011432121 is 121234110301.

It can be written as a sum of positive squares in 4 ways, for example, as 716365225 + 102295066896 = 26765^2 + 319836^2 .

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 103011432121 - 27 = 103011431993 is a prime.

It is a super-2 number, since 2×1030114321212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103011432127) 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, 136619560 + ... + 136620313.

It is an arithmetic number, because the mean of its divisors is an integer number (14345093385).

Almost surely, 2103011432121 is an apocalyptic number.

It is an amenable number.

103011432121 is a deficient number, since it is larger than the sum of its proper divisors (11749314959).

103011432121 is a wasteful number, since it uses less digits than its factorization.

103011432121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273239915.

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

Adding to 103011432121 its reverse (121234110301), we get a palindrome (224245542422).

The spelling of 103011432121 in words is "one hundred three billion, eleven million, four hundred thirty-two thousand, one hundred twenty-one".

Divisors: 1 13 29 377 273239873 3552118349 7923956317 103011432121