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103011243101 = 137923941777
BaseRepresentation
bin101111111101111110…
…0101101010001011101
3100211220000211100012222
41133323330231101131
53141431334234401
6115153412235125
710304500055624
oct1377374552135
9324800740188
10103011243101
113a761185668
1217b6a30baa5
13993862c5b0
144db2d526bb
152a2d79ec1b
hex17fbf2d45d

103011243101 has 4 divisors (see below), whose sum is σ = 110935184892. Its totient is φ = 95087301312.

The previous prime is 103011243091. The next prime is 103011243131. The reversal of 103011243101 is 101342110301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101342110301 = 195333795279.

It can be written as a sum of positive squares in 2 ways, for example, as 25368207076 + 77643036025 = 159274^2 + 278645^2 .

It is a cyclic number.

It is not a de Polignac number, because 103011243101 - 26 = 103011243037 is a prime.

It is a super-2 number, since 2×1030112431012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103011243101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103011243131) 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, 3961970876 + ... + 3961970901.

It is an arithmetic number, because the mean of its divisors is an integer number (27733796223).

Almost surely, 2103011243101 is an apocalyptic number.

It is an amenable number.

103011243101 is a deficient number, since it is larger than the sum of its proper divisors (7923941791).

103011243101 is an equidigital number, since it uses as much as digits as its factorization.

103011243101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7923941790.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103011243101 its reverse (101342110301), we get a palindrome (204353353402).

The spelling of 103011243101 in words is "one hundred three billion, eleven million, two hundred forty-three thousand, one hundred one".

Divisors: 1 13 7923941777 103011243101