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103203212131 = 1512712522011
BaseRepresentation
bin110000000011101100…
…1000000101101100011
3100212101102001101020001
41200013121000231203
53142330010242011
6115224431000431
710312320554245
oct1400731005543
9325342041201
10103203212131
113a84a582858
1218002669117
139969334336
144dd0644095
152a4056e7c1
hex1807640b63

103203212131 has 8 divisors (see below), whose sum is σ = 104270064128. Its totient is φ = 102141405000.

The previous prime is 103203212129. The next prime is 103203212173. The reversal of 103203212131 is 131212302301.

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 103203212131 - 21 = 103203212129 is a prime.

It is a super-2 number, since 2×1032032121312 (a number of 23 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 = 103203212099 and 103203212108.

It is not an unprimeable number, because it can be changed into a prime (103203212191) 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, 1220085 + ... + 1301926.

It is an arithmetic number, because the mean of its divisors is an integer number (13033758016).

Almost surely, 2103203212131 is an apocalyptic number.

103203212131 is a deficient number, since it is larger than the sum of its proper divisors (1066851997).

103203212131 is a wasteful number, since it uses less digits than its factorization.

103203212131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522433.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103203212131 its reverse (131212302301), we get a palindrome (234415514432).

The spelling of 103203212131 in words is "one hundred three billion, two hundred three million, two hundred twelve thousand, one hundred thirty-one".

Divisors: 1 151 271 40921 2522011 380823661 683464981 103203212131